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El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/jp409298f</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Kang, Bin</style></author><author><style face="normal" font="default" size="100%">Austin, Lauren</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Observing Real-Time Molecular Event Dynamics of Apoptosis in Living Cancer Cells using Nuclear-Targeted Plasmonically Enhanced Raman Nanoprobes</style></title><secondary-title><style face="normal" font="default" size="100%">ACS nano</style></secondary-title><short-title><style face="normal" font="default" size="100%">ACS Nano</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">2014</style></year></dates><number><style face="normal" font="default" size="100%">5</style></number><volume><style face="normal" font="default" size="100%">8</style></volume><pages><style face="normal" font="default" size="100%">4883-4892</style></pages><isbn><style face="normal" font="default" size="100%">1936-0851</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Austin, Lauren</style></author><author><style face="normal" font="default" size="100%">Mackey, Megan A.</style></author><author><style face="normal" font="default" size="100%">Dreaden, Erik C.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The optical, photothermal, and facile surface chemical properties of gold and silver nanoparticles in biodiagnostics, therapy, and drug delivery</style></title><secondary-title><style face="normal" font="default" size="100%">Archives of Toxicology</style></secondary-title><short-title><style face="normal" font="default" size="100%">Arch. Toxicol.</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">2014</style></year></dates><pages><style face="normal" font="default" size="100%">1-27</style></pages><isbn><style face="normal" font="default" size="100%">0340-5761</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Dreaden, Erik C.</style></author><author><style face="normal" font="default" size="100%">Raji, Idris O</style></author><author><style face="normal" font="default" size="100%">Austin, Lauren</style></author><author><style face="normal" font="default" size="100%">Fathi, Shaghayegh</style></author><author><style face="normal" font="default" size="100%">Mwakwari, Sandra C</style></author><author><style face="normal" font="default" size="100%">Humphries, William H</style></author><author><style face="normal" font="default" size="100%">Kang, Bin</style></author><author><style face="normal" font="default" size="100%">Oyelere, Adegboyega K</style></author><author><style face="normal" font="default" size="100%">El‐Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">P‐Glycoprotein‐Dependent Trafficking of Nanoparticle‐Drug Conjugates</style></title><secondary-title><style face="normal" font="default" size="100%">Small</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2014</style></year></dates><number><style face="normal" font="default" size="100%">9</style></number><volume><style face="normal" font="default" size="100%">10</style></volume><pages><style face="normal" font="default" size="100%">1719-1723</style></pages><isbn><style face="normal" font="default" size="100%">1613-6829</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Nashed, Ramy</style></author><author><style face="normal" font="default" size="100%">Szymanski, Paul</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A.</style></author><author><style face="normal" font="default" size="100%">Allam, Nageh K</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Self-Assembled Nanostructured Photoanodes with Staggered Bandgap for Efficient Solar Energy Conversion</style></title><secondary-title><style face="normal" font="default" size="100%">ACS nano</style></secondary-title><short-title><style face="normal" font="default" size="100%">ACS Nano</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">2014</style></year></dates><isbn><style face="normal" font="default" size="100%">1936-0851</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Hooshmand, Nasrin</style></author><author><style face="normal" font="default" size="100%">O&#039;Neil, Daniel</style></author><author><style face="normal" font="default" size="100%">Asiri, Abdullah M</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The Spectroscopy of Homo and Heterodimers of Silver and Gold Nanocubes as a Function of Separation: a DDA Simulation</style></title><secondary-title><style face="normal" font="default" size="100%">The Journal of Physical Chemistry A</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2014</style></year></dates><isbn><style face="normal" font="default" size="100%">1089-5639</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Afifi, M. M.</style></author><author><style face="normal" font="default" size="100%">Austin, Lauren</style></author><author><style face="normal" font="default" size="100%">Mackey, M. A.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, M. A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">XAV939: From a Small Inhibitor to a Potent Drug Bioconjugate When Delivered by Gold Nanoparticles</style></title><secondary-title><style face="normal" font="default" size="100%">Bioconjugate Chemistry</style></secondary-title><short-title><style face="normal" font="default" size="100%">Bioconjugate Chem</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Feb</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">2</style></number><volume><style face="normal" font="default" size="100%">25</style></volume><pages><style face="normal" font="default" size="100%">207-215</style></pages><isbn><style face="normal" font="default" size="100%">1043-1802</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">WOS:000331779700003</style></accession-num><notes><style face="normal" font="default" size="100%">Afifi, Marwa M. Austin, Lauren A. Mackey, Megan A. El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/bc400271x</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Nashed, R.</style></author><author><style face="normal" font="default" size="100%">Alamgir, F. M.</style></author><author><style face="normal" font="default" size="100%">Jang, S. S.</style></author><author><style face="normal" font="default" size="100%">Ismail, Y.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, M. A.</style></author><author><style face="normal" font="default" size="100%">Allam, N. K.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Bandgap bowing in Ta-W-O system for efficient solar energy conversion: Insights from density functional theory and X-ray diffraction</style></title><secondary-title><style face="normal" font="default" size="100%">Applied Physics Letters</style></secondary-title><short-title><style face="normal" font="default" size="100%">Appl. Phys. Lett.</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">2013</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Sep</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">13</style></number><volume><style face="normal" font="default" size="100%">103</style></volume><isbn><style face="normal" font="default" size="100%">0003-6951</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">WOS:000325284500110</style></accession-num><notes><style face="normal" font="default" size="100%">Nashed, Ramy Alamgir, Faisal M. Jang, Seung Soon Ismail, Yehea El-Sayed, Mostafa A. Allam, Nageh K.</style></notes><custom7><style face="normal" font="default" size="100%">133905</style></custom7><electronic-resource-num><style face="normal" font="default" size="100%">10.1063/1.4823543</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Kang, B.</style></author><author><style face="normal" font="default" size="100%">Afifi, M. M.</style></author><author><style face="normal" font="default" size="100%">Austin, Lauren</style></author><author><style face="normal" font="default" size="100%">El-Sayed, M. A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Exploiting the Nanoparticle Plasmon Effect: Observing Drug Delivery Dynamics in Single Cells via Raman/Fluorescence Imaging Spectroscopy</style></title><secondary-title><style face="normal" font="default" size="100%">Acs Nano</style></secondary-title><short-title><style face="normal" font="default" size="100%">ACS Nano</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">2013</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Aug</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">8</style></number><volume><style face="normal" font="default" size="100%">7</style></volume><pages><style face="normal" font="default" size="100%">7420-7427</style></pages><isbn><style face="normal" font="default" size="100%">1936-0851</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">WOS:000323810600108</style></accession-num><notes><style face="normal" font="default" size="100%">Kang, Bin Afifi, Marwa M. Austin, Lauren A. El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/nn403351z</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Austin, Lauren</style></author><author><style face="normal" font="default" size="100%">Kang, Bin</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A New Nanotechnology Technique for Determining Drug Efficacy Using Targeted Plasmonically Enhanced Single Cell Imaging Spectroscopy</style></title><secondary-title><style face="normal" font="default" size="100%">J Am Chem Soc</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2013</style></year><pub-dates><date><style  face="normal" font="default" size="100%">//</style></date></pub-dates></dates><isbn><style face="normal" font="default" size="100%">1520-5126</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Recently, we described a new technique, targeted plasmonically enhanced single cell imaging spectroscopy (T-PESCIS), which exploits the plasmonic properties of gold nanoparticles, e.g. gold nanospheres, to simultaneously obtain enhanced intracellular Raman molecular spectra and enhanced Rayleigh cell scattering images throughout the entire span of a single cell cycle. In the present work, we demonstrate the use of T-PESCIS in evaluating the relative efficacy and dynamics of two popular chemotherapy drugs on human oral squamous carcinoma (HSC-3) cells. T-PESCIS revealed three plasmonically enhanced Raman scattering vibration bands, 500, 1000, and 1585 cm(-1), associated with the cellular death dynamics. Detailed analysis indicated that the decrease in the 500 cm(-1) band did not correlate well with drug efficacy but could indicate death initiation. The time it takes for the relative intensity of either the 1000 or 1585 cm(-1) band (&quot;SERS death&quot; bands) to appear and increase to its maximum value after the injection of a known concentration of the drug can be related to the drug&#039;s efficacy. The inverse ratio, termed cell death enhancement factor, of these characteristic death times when using either band, especially the spectrally sharp band at 1000 cm(-1), gave the correct drug efficacy ratio as determined by the commonly used XTT cell viability assay method. These results strongly suggest the potential future use of this technique in determining the efficacy, dynamics, and molecular mechanisms of various drugs against different diseases.[on SciFinder (R)]</style></abstract><notes><style face="normal" font="default" size="100%">MEDLINE AN 2013441929(Journal; Article; (JOURNAL ARTICLE))</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Hayden, S. C.</style></author><author><style face="normal" font="default" size="100%">Austin, Lauren</style></author><author><style face="normal" font="default" size="100%">Near, R. D.</style></author><author><style face="normal" font="default" size="100%">Ozturk, R.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, M. A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Plasmonic enhancement of photodynamic cancer therapy</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Photochemistry and Photobiology a-Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2013</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">269</style></volume><pages><style face="normal" font="default" size="100%">34-41</style></pages><isbn><style face="normal" font="default" size="100%">1010-6030</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">WOS:000324454900005</style></accession-num><notes><style face="normal" font="default" size="100%">Hayden, Steven C. Austin, Lauren A. Near, Rachel D. Ozturk, Ramazan El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1016/j.jphotochem.2013.06.004</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Shaheen, B. S.</style></author><author><style face="normal" font="default" size="100%">Salem, H. G.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, M. A.</style></author><author><style face="normal" font="default" size="100%">Allam, N. K.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Thermal/Electrochemical Growth and Characterization of One-Dimensional ZnO/TiO2 Hybrid Nanoelectrodes for Solar Fuel Production</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Physical Chemistry C</style></secondary-title><short-title><style face="normal" font="default" size="100%">J. Phys. Chem. C</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">2013</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Sep</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">36</style></number><volume><style face="normal" font="default" size="100%">117</style></volume><pages><style face="normal" font="default" size="100%">18502-18509</style></pages><isbn><style face="normal" font="default" size="100%">1932-7447</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">WOS:000330162700026</style></accession-num><notes><style face="normal" font="default" size="100%">Shaheen, Basamat S. Salem, Hanadi G. El-Sayed, Mostafa A. Allam, Nageh K.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/jp405515v</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">El-Sayed, M. A.</style></author><author><style face="normal" font="default" size="100%">Shabaka, A. A.</style></author><author><style face="normal" font="default" size="100%">El-Shabrawy, O. A.</style></author><author><style face="normal" font="default" size="100%">Yassin, N. A.</style></author><author><style face="normal" font="default" size="100%">Mahmoud, S. S.</style></author><author><style face="normal" font="default" size="100%">El-Shenawy, S. M.</style></author><author><style face="normal" font="default" size="100%">Al-Ashqar, E.</style></author><author><style face="normal" font="default" size="100%">Eisa, W. H.</style></author><author><style face="normal" font="default" size="100%">Farag, N. M.</style></author><author><style face="normal" font="default" size="100%">El-Shaer, M. A.</style></author><author><style face="normal" font="default" size="100%">Salah, N.</style></author><author><style face="normal" font="default" size="100%">Al-Abd, A. M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Tissue Distribution and Efficacy of Gold Nanorods Coupled with Laser Induced Photoplasmonic Therapy in Ehrlich Carcinoma Solid Tumor Model</style></title><secondary-title><style face="normal" font="default" size="100%">Plos One</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2013</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">10</style></number><volume><style face="normal" font="default" size="100%">8</style></volume><isbn><style face="normal" font="default" size="100%">1932-6203</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Gold nanorods (GNR) within tumor microregions are characterized by their ability to absorb near IR light and emit heat in what is called photoplasmonic effect. Yet, the efficacy of nanoparticles is limited due to intratumoral tissue distribution reasons. In addition, distribution of GNRs to normal tissue might result in non specific toxicity. In the current study, we are assessing the intratumoral and tissue distribution of PEGylated GNRs on the top of its antitumor characteristics when given intravenously or intratumoral to solid tumor bearing mice and coupled with laser photoplasmonic sessions. PEGylated GNRs with a longitudinal size of less than 100 nm were prepared with aspect ratio of 4.6 showing strong surface plasmon absorption at wavelength 800 nm. Pharmacokinetics of GNR after single I.V. administration (0.1 mg/kg) showed very short systemic circulating time (less than 3 h). On the other hand, tissue distribution of I.V. GNR (0.1 mg/kg) to normal animals showed preferential deposition in spleen tissue. Repeated administration of I.V. GNR resulted in preferential accumulation in both liver and spleen tissues. In addition, I.V. administration of GNR to Ehrlich carcinoma tumor bearing mice resulted in similar tissue distribution; tumor accumulation and anti-tumor effect compared to intratumoral administration. In conclusion, the concentration of GNR achieved within tumors microregions after I.V. administration was comparable to I.T. administration and sufficient to elicit tumoral growth arrest when coupled with laser-aided photoplasmonic treatment.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000325434500052</style></accession-num><notes><style face="normal" font="default" size="100%">El-Sayed, Mostafa A. Shabaka, Ali A. El-Shabrawy, Osama A. Yassin, Nemat A. Mahmoud, Sawsan S. El-Shenawy, Siham M. Al-Ashqar, Emad Eisa, Wael H. Farag, Niveen M. El-Shaer, Marwa A. Salah, Nabila Al-Abd, Ahmed M.</style></notes><custom7><style face="normal" font="default" size="100%">e76207</style></custom7><electronic-resource-num><style face="normal" font="default" size="100%">10.1371/journal.pone.0076207</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>10</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Nashed, Ramy</style></author><author><style face="normal" font="default" size="100%">Alamgir, Faisal M</style></author><author><style face="normal" font="default" size="100%">Seung-Soon, Jang</style></author><author><style face="normal" font="default" size="100%">Ismail, Yehea</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A.</style></author><author><style face="normal" font="default" size="100%">Allam, Nageh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Towards a perfect system for solar hydrogen production: an example of synergy on the atomic scale</style></title><secondary-title><style face="normal" font="default" size="100%">SPIE Solar Energy+ Technology</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2013</style></year></dates><publisher><style face="normal" font="default" size="100%">International Society for Optics and Photonics</style></publisher><pages><style face="normal" font="default" size="100%">88220A-88220A-7</style></pages><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>10</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Peng, Xianghong</style></author><author><style face="normal" font="default" size="100%">Mackey, Megan</style></author><author><style face="normal" font="default" size="100%">Austin, Lauren</style></author><author><style face="normal" font="default" size="100%">Oyelere, Adegboyega</style></author><author><style face="normal" font="default" size="100%">Chen, Georgia</style></author><author><style face="normal" font="default" size="100%">Huang, Xiaohua</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A.</style></author><author><style face="normal" font="default" size="100%">Shin, Dong M</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Toxicities and antitumor efficacy of tumor-targeted AuNRs in mouse model</style></title><secondary-title><style face="normal" font="default" size="100%">CANCER RESEARCH</style></secondary-title><short-title><style face="normal" font="default" size="100%">Cancer Res.</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">2013</style></year></dates><number><style face="normal" font="default" size="100%">8</style></number><publisher><style face="normal" font="default" size="100%">AMER ASSOC CANCER RESEARCH 615 CHESTNUT ST, 17TH FLOOR, PHILADELPHIA, PA 19106-4404 USA</style></publisher><volume><style face="normal" font="default" size="100%">73</style></volume><isbn><style face="normal" font="default" size="100%">0008-5472</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Mohamed, Mona B.</style></author><author><style face="normal" font="default" size="100%">Adbel-Ghani, Nour T.</style></author><author><style face="normal" font="default" size="100%">El-Borady, Ola M.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">5-Fluorouracil induces plasmonic coupling in gold nanospheres: new generation of chemotherapeutic agents</style></title><secondary-title><style face="normal" font="default" size="100%">J. Nanomed. Nanotechnol.</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">//</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">7</style></number><publisher><style face="normal" font="default" size="100%">OMICS Publishing Group</style></publisher><volume><style face="normal" font="default" size="100%">3</style></volume><pages><style face="normal" font="default" size="100%">1000146/1-1000146/7</style></pages><isbn><style face="normal" font="default" size="100%">2157-7439</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Loading 5- Fluorouracil (5-FU) into gold nanoparticles (AuNPs) could enhance its activity as anticancer drug hugely by enhancing its ability for penetration through the cell membrane. Accordingly, this work is devoted to loading 5-FU into AuNPs surface and studying the binding mechanism of the drug to the surface of the gold nanoparticles. Our finding indicates that new absorption band appears at longer wavelength upon loading 5-FU into gold nanospheres capped with citrate. This near IR band is due to induced surface plasmon coupling via hydrogen bonding between 5-FU and surface capping AuNPs. This leads to great enhancement of the drug action as chemotherapeutic as well as photothermal agents. Factors which affect the binding between 5-FU and the AuNPs such as pH, time after mixing the drug with AuNPs, concn. of the 5-FU, have been studied in detail. Accordingly, the binding interaction is proven to be via hydrogen bonding. Upon the investigation of thermal and photo satiability, the formed composite 5-FU@ AuNPs showed high stability towards these factors. The spectral and morphol. studies were measured via UV-VIS spectroscopy and Transmission Electron Microscopy (HR-TEM). Remarkable increases in the drug anticancer activity upon loading into AuNPs were obsd. for the cell viability test of human colon cancer (HCT16). [on SciFinder(R)]</style></abstract><work-type><style face="normal" font="default" size="100%">10.4172/2157-7439.1000146</style></work-type><notes><style face="normal" font="default" size="100%">CAPLUS AN 2012:1822923(Journal; Online Computer File)</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.4172/2157-7439.1000146</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Dreaden, E. C.</style></author><author><style face="normal" font="default" size="100%">Gryder, B. E.</style></author><author><style face="normal" font="default" size="100%">Austin, Lauren</style></author><author><style face="normal" font="default" size="100%">Defo, B. A. T.</style></author><author><style face="normal" font="default" size="100%">Hayden, S. C.</style></author><author><style face="normal" font="default" size="100%">Pi, M.</style></author><author><style face="normal" font="default" size="100%">Quarles, L. D.</style></author><author><style face="normal" font="default" size="100%">Oyelere, A. K.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, M. A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Antiandrogen Gold Nanoparticles Dual-Target and Overcome Treatment Resistance in Hormone-Insensitive Prostate Cancer Cells</style></title><secondary-title><style face="normal" font="default" size="100%">Bioconjugate Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Aug</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">8</style></number><volume><style face="normal" font="default" size="100%">23</style></volume><pages><style face="normal" font="default" size="100%">1507-1512</style></pages><isbn><style face="normal" font="default" size="100%">1043-1802</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">prostate cancer is the most commonly diagnosed cancer among men in the developed countries.(1) One in six males in the U.S.(2) and one in nine males in the U.K.(3) will develop the disease at some point during their lifetime. Despite advances in prostate cancer screening, more than a quarter of a million men die from the disease every year(1) due primarily to treatment-resistance and metastasis. Colloidal nanotechnologies can provide tremendous enhancements to existing targeting/treatment strategies for prostate cancer to which malignant cells are less sensitive. Here, we show that antiandrogen gold nanoparticles-multivalent analogues of antiandrogens currently used in clinical therapy for prostate cancer-selectively engage two distinct receptors, androgen receptor (AR), a target for the treatment of prostate cancer, as well as a novel G-protein coupled receptor, GPRC6A, that is also upregulated in prostate cancer. These nanoparticles selectively accumulated in hormone-insensitive and chemotherapy resistant prostate cancer cells, bound androgen receptor with multivalent affinity, and exhibited greatly enhanced drug potency versus monovalent antiandrogens currently in clinical use Further, antiandrogen gold nanoparticles selectively stimulated GPRC6A with multivalent affinity, demonstrating that the delivery of nanoscale antiandrogens can also be facilitated by the transmembrane receptor in order to realize increasingly selective, increasingly potent therapy for treatment-resistant prostate cancers.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000307487300002</style></accession-num><notes><style face="normal" font="default" size="100%">Times Cited: 0Dreaden, Erik C. Gryder, Berkley E. Austin, Lauren A. Defo, Brice A. Tene Hayden, Steven C. Pi, Min Quarles, L. Darryl Oyelere, Adegboyega K. El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/bc300158k</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Mahmoud, M A</style></author><author><style face="normal" font="default" size="100%">Chamanzar, M.</style></author><author><style face="normal" font="default" size="100%">Adibi, A.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, M. A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Effect of the Dielectric Constant of the Surrounding Medium and the Substrate on the Surface Plasmon Resonance Spectrum and Sensitivity Factors of Highly Symmetric Systems: Silver Nanocubes</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of the American Chemical Society</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Apr</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">14</style></number><volume><style face="normal" font="default" size="100%">134</style></volume><pages><style face="normal" font="default" size="100%">6434-6442</style></pages><isbn><style face="normal" font="default" size="100%">0002-7863</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Silver nanocubes (AgNCs), 60 nm, have four extinction surface plasmon resonance (SPR) peaks. The finite difference time domain (FDTD) simulation method is used to assign the absorption and scattering peaks and also to calculate the plasmon field intensity for AgNCs. Because AgNCs have a highly symmetric cubic shape, there is a uniform distribution of the plasmon field around them, and they are thus sensitive to asymmetric dielectric perturbations. When the dielectric medium around a nanoparticle is changed anisotropically, either by placing the particle on a substrate or by coating it asymmetrically with a solvent, the plasmon field is distorted, and the plasmonic absorption and scattering spectra could shift differently. For the 60 nm AgNC, we found that the scattering resonance peak shifted more than the absorption peak. This changes the extinction bandwidth of these overlapping absorption and scattering bands, and consequently the figure of merit of the nanoparticle, as a localized SPR sensor, no longer has a constant value.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000302524800053</style></accession-num><notes><style face="normal" font="default" size="100%">Times Cited: 3Mahmoud, Mahmoud A. Chamanzar, Maysamreza Adibi, Ali El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/ja300901e</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Dreaden, E. C.</style></author><author><style face="normal" font="default" size="100%">Alkilany, A. M.</style></author><author><style face="normal" font="default" size="100%">Huang, X. H.</style></author><author><style face="normal" font="default" size="100%">Murphy, C. J.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, M. A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The golden age: gold nanoparticles for biomedicine</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical Society Reviews</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2012</style></year></dates><number><style face="normal" font="default" size="100%">7</style></number><volume><style face="normal" font="default" size="100%">41</style></volume><pages><style face="normal" font="default" size="100%">2740-2779</style></pages><isbn><style face="normal" font="default" size="100%">0306-0012</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Gold nanoparticles have been used in biomedical applications since their first colloidal syntheses more than three centuries ago. However, over the past two decades, their beautiful colors and unique electronic properties have also attracted tremendous attention due to their historical applications in art and ancient medicine and current applications in enhanced optoelectronics and photovoltaics. In spite of their modest alchemical beginnings, gold nanoparticles exhibit physical properties that are truly different from both small molecules and bulk materials, as well as from other nanoscale particles. Their unique combination of properties is just beginning to be fully realized in range of medical diagnostic and therapeutic applications. This critical review will provide insights into the design, synthesis, functionalization, and applications of these artificial molecules in biomedicine and discuss their tailored interactions with biological systems to achieve improved patient health. Further, we provide a survey of the rapidly expanding body of literature on this topic and argue that gold nanotechnology-enabled biomedicine is not simply an act of &#039;gilding the (nanomedicinal) lily&#039;, but that a new &#039;Golden Age&#039; of biomedical nanotechnology is truly upon us. Moving forward, the most challenging nanoscience ahead of us will be to find new chemical and physical methods of functionalizing gold nanoparticles with compounds that can promote efficient binding, clearance, and biocompatibility and to assess their safety to other biological systems and their long-term term effects on human health and reproduction (472 references).</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000301354900016</style></accession-num><notes><style face="normal" font="default" size="100%">Times Cited: 54Dreaden, Erik C. Alkilany, Alaaldin M. Huang, Xiaohua Murphy, Catherine J. El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1039/c1cs15237h</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Kang, B.</style></author><author><style face="normal" font="default" size="100%">Austin, Lauren</style></author><author><style face="normal" font="default" size="100%">El-Sayed, M. A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Real-Time Molecular Imaging throughout the Entire Cell Cycle by Targeted Plasmonic-Enhanced Rayleigh/Raman Spectroscopy</style></title><secondary-title><style face="normal" font="default" size="100%">Nano Letters</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">10</style></number><volume><style face="normal" font="default" size="100%">12</style></volume><pages><style face="normal" font="default" size="100%">5369-5375</style></pages><isbn><style face="normal" font="default" size="100%">1530-6984</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Due to their strong enhancement of scattered light, plasmonic nanoparticles have been utilized for various biological and medical applications. Here, we describe a new technique, Targeted Plasmonic-Enhanced Single-Cell Rayleigh/Raman Spectroscopy, to monitor the molecular changes of any cell-component, such as the nucleus, during the different phases of its full cell cycle by simultaneously recording its Rayleigh images and Raman vibration spectra in real-time. The analysis of the observed Raman DNA and protein peaks allowed the different phases of the cell cycle to be identified. This technique could be used for disease diagnostics and potentially improve our understanding of the molecular mechanisms of cellular functions such as division, death, signaling, and drug action.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000309615000049</style></accession-num><notes><style face="normal" font="default" size="100%">Times Cited: 0Kang, Bin Austin, Lauren A. El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/nl3027586</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Dreaden, Erik C.</style></author><author><style face="normal" font="default" size="100%">Austin, Lauren</style></author><author><style face="normal" font="default" size="100%">Mackey, Megan A.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Size matters: gold nanoparticles in targeted cancer drug delivery</style></title><secondary-title><style face="normal" font="default" size="100%">Ther. Delivery</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">review gold nanoparticle targeted cancer drug delivery</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">//</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">4</style></number><publisher><style face="normal" font="default" size="100%">Future Science Ltd.</style></publisher><volume><style face="normal" font="default" size="100%">3</style></volume><pages><style face="normal" font="default" size="100%">457-478</style></pages><isbn><style face="normal" font="default" size="100%">2041-5990</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">A review. Cancer is the current leading cause of death worldwide, responsible for approx. one quarter of all deaths in the USA and UK. Nanotechnologies provide tremendous opportunities for multimodal, site-specific drug delivery to these disease sites and Au nanoparticles further offer a particularly unique set of phys., chem. and photonic properties with which to do so. This review will highlight some recent advances, by our lab. and others, in the use of Au nanoparticles for systemic drug delivery to these malignancies and will also provide insights into their rational design, synthesis, physiol. properties and clin./preclin. applications, as well as strategies and challenges toward the clin. implementation of these constructs moving forward. [on SciFinder(R)]</style></abstract><work-type><style face="normal" font="default" size="100%">10.4155/tde.12.21</style></work-type><notes><style face="normal" font="default" size="100%">CAPLUS AN 2012:489934(Journal; General Review; Online Computer File)</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.4155/tde.12.21</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Dreaden, E. C.</style></author><author><style face="normal" font="default" size="100%">Mwakwari, S. C.</style></author><author><style face="normal" font="default" size="100%">Austin, Lauren</style></author><author><style face="normal" font="default" size="100%">Kieffer, M. J.</style></author><author><style face="normal" font="default" size="100%">Oyelere, A. K.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, M. A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Small Molecule-Gold Nanorod Conjugates Selectively Target and Induce Macrophage Cytotoxicity towards Breast Cancer Cells</style></title><secondary-title><style face="normal" font="default" size="100%">Small</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Sep</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">18</style></number><volume><style face="normal" font="default" size="100%">8</style></volume><pages><style face="normal" font="default" size="100%">2819-2822</style></pages><isbn><style face="normal" font="default" size="100%">1613-6810</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">WOS:000308874900006</style></accession-num><notes><style face="normal" font="default" size="100%">Times Cited: 0Dreaden, Erik C. Mwakwari, Sandra C. Austin, Lauren A. Kieffer, Matthew J. Oyelere, Adegboyega K. El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1002/smll.201200333</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ali, M. R. K.</style></author><author><style face="normal" font="default" size="100%">Snyder, B.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, M. A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Synthesis and Optical Properties of Small Au Nanorods Using a Seedless Growth Technique</style></title><secondary-title><style face="normal" font="default" size="100%">Langmuir</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jun</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">28</style></volume><pages><style face="normal" font="default" size="100%">9807-9815</style></pages><isbn><style face="normal" font="default" size="100%">0743-7463</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Gold nanoparticles have shown potential in photothermal cancer therapy and optoelectronic technology. In both applications, a call for small size nanorods is warranted. In the present work, a one-pot seedless synthetic technique has been developed to prepare relatively small monodisperse gold nanorods with average dimensions (length x width) of 18 x 4.5 nm, 25 x 5 nm, 15 x 4.5 nm, and 10 x 2.5 nm. In this method, the pH was found to play a crucial role in the monodispersity of the nanorods when the NaBH4 concentration of the growth solution was adjusted to control the reduction rate of the gold ions. At the optimized pH and NaBH4 concentrations, smaller gold nanorods were produced by adjusting the CTAB concentration in the growth solution. In addition, the concentration of silver ions in the growth solution was found to be pivotal in controlling the aspect ratio of the nanorods. The extinction coefficient values for the small gold nanorods synthesized with three different aspect ratios were estimated using the absorption spectra, size distributions, and the atomic spectroscopic analysis data. The previously accepted relationships between the extinction coefficient or the longitudinal band wavelength values and the nanorods&#039; aspect ratios found for the large nanorods do not extend to the small size domain reported in the present work. The failure of extending these relationships over larger sizes is a result of the interaction of light with the large rods giving an extinction band which results mostly from scattering processes while the extinction of the small nanorods results from absorption processes.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000305661400075</style></accession-num><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/la301387p</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ali, M. R. K.</style></author><author><style face="normal" font="default" size="100%">Snyder, B.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, M. A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Synthesis and Optical Properties of Small Au Nanorods Using a Seedless Growth Technique</style></title><secondary-title><style face="normal" font="default" size="100%">Langmuir</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jun</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">25</style></number><volume><style face="normal" font="default" size="100%">28</style></volume><pages><style face="normal" font="default" size="100%">9807-9815</style></pages><isbn><style face="normal" font="default" size="100%">0743-7463</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Gold nanoparticles have shown potential in photothermal cancer therapy and optoelectronic technology. In both applications, a call for small size nanorods is warranted. In the present work, a one-pot seedless synthetic technique has been developed to prepare relatively small monodisperse gold nanorods with average dimensions (length x width) of 18 x 4.5 nm, 25 x 5 nm, 15 x 4.5 nm, and 10 x 2.5 nm. In this method, the pH was found to play a crucial role in the monodispersity of the nanorods when the NaBH4 concentration of the growth solution was adjusted to control the reduction rate of the gold ions. At the optimized pH and NaBH4 concentrations, smaller gold nanorods were produced by adjusting the CTAB concentration in the growth solution. In addition, the concentration of silver ions in the growth solution was found to be pivotal in controlling the aspect ratio of the nanorods. The extinction coefficient values for the small gold nanorods synthesized with three different aspect ratios were estimated using the absorption spectra, size distributions, and the atomic spectroscopic analysis data. The previously accepted relationships between the extinction coefficient or the longitudinal band wavelength values and the nanorods&#039; aspect ratios found for the large nanorods do not extend to the small size domain reported in the present work. The failure of extending these relationships over larger sizes is a result of the interaction of light with the large rods giving an extinction band which results mostly from scattering processes while the extinction of the small nanorods results from absorption processes.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000305661400075</style></accession-num><notes><style face="normal" font="default" size="100%">Times Cited: 2Ali, Moustafa R. K. Snyder, Brian El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/la301387p</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Allam, N. K.</style></author><author><style face="normal" font="default" size="100%">Yen, C. W.</style></author><author><style face="normal" font="default" size="100%">Near, R. D.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Bacteriorhodopsin/TiO(2) nanotube arrays hybrid system for enhanced photoelectrochemical water splitting</style></title><secondary-title><style face="normal" font="default" size="100%">Energy &amp; Environmental Science</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Aug</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">8</style></number><volume><style face="normal" font="default" size="100%">4</style></volume><pages><style face="normal" font="default" size="100%">2909-2914</style></pages><isbn><style face="normal" font="default" size="100%">1754-5692</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">In recent years, considerable efforts have been made to improve the performance of photoactive nanostructured materials for water splitting applications. Herein, we report on the assembly and use of a bacteriorhodopsin (bR)/TiO(2) nanotube array hybrid electrode system. Photoanode materials composed of similar to 7 mu m long self-ordered and vertically oriented nanotube array of titanium dioxide films were fabricated via the anodization of Ti foil in formamide electrolytes containing NH(4)F at room temperature followed by sensitization of the electrodes with bR. The stability of bR on the TiO(2) surface was found to depend on the pretreatment process of the TiO(2) films. Our results demonstrate the opportunity to fabricate fairly stable bR/TiO(2) hybrid electrodes that can be used as photoanodes for photoelectrochemical water splitting. Under AM 1.5 illumination (100 mW/cm(2)), the hybrid electrodes achieved a photocurrent density of 0.65 mA/cm(2) which is a similar to 50% increase over that measured for pure TiO(2) nanotubes (0.43 mA/cm(2)) fabricated and tested under the same conditions. In the presence of a redox electrolyte, the photocurrent increased to 0.87 mA/cm(2). To the best of our knowledge, this is the first report on the use of bR/TiO(2) hybrid electrodes in photoelectrochemical water oxidation cells. We believe the proton pumping property of bR can be used in a variety of applications, especially those related to third generation photovoltaic cells.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000293213600037</style></accession-num><notes><style face="normal" font="default" size="100%">Allam, Nageh K. Yen, Chun-Wan Near, Rachel D. El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1039/c1ee01447a</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Hamedani, H. A.</style></author><author><style face="normal" font="default" size="100%">Allam, N. K.</style></author><author><style face="normal" font="default" size="100%">Garmestani, H.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Electrochemical Fabrication of Strontium-Doped TiO(2) Nanotube Array Electrodes and Investigation of Their Photoelectrochemical Properties</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Physical Chemistry C</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jul</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">27</style></number><volume><style face="normal" font="default" size="100%">115</style></volume><pages><style face="normal" font="default" size="100%">13480-13486</style></pages><isbn><style face="normal" font="default" size="100%">1932-7447</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">In recent years, considerable efforts have been made to improve the performance of photoactive nanostructured materials for water-splitting applications. Herein, we report on the fabrication and photoelectrochemical properties of highly ordered Sr-doped TiO(2) nanotube arrays synthesized via a one-step electrochemical anodization technique. Nanotube arrays of Sr-doped TiO(2) were synthesized via anodization of titanium foil in aqueous electrolytes containing NH(4)F and various concentrations of Sr(OH)(2) at different electrolyte pHs. The morphology and quality of the fabricated materials were found to be significantly affected by the pH of the electrolyte as well as the solubility limit of Sr(OH)(2) in the test electrolyte. The photoelectrochemical measurements revealed that Sr doping can significantly improve the photoconversion efficiency of the material. Using Sr-doped TiO(2) nanotube arrays, an electrode photoconversion efficiency of 0.69% was obtained, which is more than 3 times higher than that of the undoped nanotube arrays (0.2%) fabricated and tested under the same conditions.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000292479700045</style></accession-num><notes><style face="normal" font="default" size="100%">Hamedani, Hoda A. Allam, Nageh K. Garmestani, Hamid El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/jp201194b</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Dreaden, Erik</style></author><author><style face="normal" font="default" size="100%">Near, R. D.</style></author><author><style face="normal" font="default" size="100%">Abdallah, T.</style></author><author><style face="normal" font="default" size="100%">Talaat, M. H.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Multimodal plasmon coupling in low symmetry gold nanoparticle pairs detected in surface-enhanced Raman scattering</style></title><secondary-title><style face="normal" font="default" size="100%">Applied Physics Letters</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">May</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">18</style></number><volume><style face="normal" font="default" size="100%">98</style></volume><isbn><style face="normal" font="default" size="100%">0003-6951</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">We report on surface-enhanced Raman scattering of silicon phonon vibrations from arrays of gold nanoprism pairs fabricated by electron beam lithography. We found that resonant excitation of the quadrupolar surface plasmon mode of the nanoprisms increases Raman scattering intensity from the substrate as the distance between the nanoparticle pairs decreases. Finite element modeling and plasmon coupling theory indicate that symmetry is reduced as the nanoparticles approach, resulting in increased dipole-quadrupole coupling. Plasmonic enhancement of the incident and Raman-scattered photons results from the dipolar component of the mixed plasmonic field. This effect is expected to be largest in assemblies/aggregates of nanoparticles. (C) 2011 American Institute of Physics. [doi:10.1063/1.3555429]</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000290392300059</style></accession-num><notes><style face="normal" font="default" size="100%">Dreaden, Erik C. Near, Rachel D. Abdallah, Tamer Talaat, M. Hassan El-Sayed, Mostafa A.</style></notes><custom7><style face="normal" font="default" size="100%">183115</style></custom7><electronic-resource-num><style face="normal" font="default" size="100%">10.1063/1.3555429</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Austin, Lauren</style></author><author><style face="normal" font="default" size="100%">Kang, B.</style></author><author><style face="normal" font="default" size="100%">Yen, C. W.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, M. A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Plasmonic Imaging of Human Oral Cancer Cell Communities during Programmed Cell Death by Nuclear-Targeting Silver Nanoparticles</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of the American Chemical Society</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Nov</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">44</style></number><volume><style face="normal" font="default" size="100%">133</style></volume><pages><style face="normal" font="default" size="100%">17594-17597</style></pages><isbn><style face="normal" font="default" size="100%">0002-7863</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Plasmonic nanoparticles (NPs) have become a useful platform in Medicine for potential uses in disease diagnosis and treatment. Recently, it has been reported that plasmonic NPs conjugated to nuclear targeting peptides cause DNA damage and apoptotic populations in cancer cells. In the present work, we utilized the plasmonic scattering property and the ability of nuclear-targeted silver nanoparticles (NLS/RGD-AgNPs) to induce programmed cell death in order to image in real-time the behavior of human oral squamous carcinoma (HSC-3) cell communities during and after the induction of apoptosis. Plasmonic live-cell imaging revealed that HSC-3 cells behave as nonprofessional phagocytes. The induction of apoptosis in some cells led to attraction of and their subsequent engulfment by neighboring cells. Attraction to apoptotic cells resulted in clustering of the cellular community. Live-cell imaging also revealed that,. as the initial,concentration of NLS/RGD-AgNPs. increases, the rate of self killing increases and the degree of attraction and clustering decreases. These results are discussed in terms of the proposed mechanism of cells undergoing programmed cell death.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000296312200020</style></accession-num><notes><style face="normal" font="default" size="100%">Times Cited: 13Austin, Lauren A. Kang, Bin Yen, Chun-Wan El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/ja207807t</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Agarwal, A.</style></author><author><style face="normal" font="default" size="100%">Mackey, M. A.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author><author><style face="normal" font="default" size="100%">Bellamkonda, R. V.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Remote Triggered Release of Doxorubicin in Tumors by Synergistic Application of Thermosensitive Liposomes and Gold Nanorods</style></title><secondary-title><style face="normal" font="default" size="100%">Acs Nano</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jun</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">6</style></number><volume><style face="normal" font="default" size="100%">5</style></volume><pages><style face="normal" font="default" size="100%">4919-4926</style></pages><isbn><style face="normal" font="default" size="100%">1936-0851</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Delivery cif chemotherapeutic agents after encapsulation in nanocarriers such as liposomes diminishes side-effects, as PEGylated nanocarrier pharmacokinetics decrease dosing to healthy tissues and accumulate in tumors due to the enhanced permeability and retention effect. Once in the tumor, however, dosing of the chemotherapeutic to tumor cells is limited potentially by the rate of release from the carriers and the size-constrained, poor diffusivity of nanocarriers in tumor interstitium. Here, we report the design and fabrication of a thermosensitive liposomal nanocarder that maintains its encapsulation stability with a high concentration of doxorubicin payload, thereby minimizing &quot;leak&quot; and attendant toxicity. When used synergistically with PEGylated gold nanorods and near-infrared stimulation, remote triggered release of doxorubicin from thermosensitive liposomes was achieved in a mouse tumor model of human glioblastoma (U87), resulting in a. significant increase in efficacy when compared to nontriggered or nonthermosensitive PEGylated liposomes. This enhancement in efficacy is attributed to increase in tumor-site apoptosis, as was evident from noninvasive apoptosis imaging using Annexin-Vivo 750 probe. This strategy afford; remotely triggered control of tumor dosing of nanocarrier-encapsulated doxorubicin without sacrificing the ability to differentially dose drugs to tumors via the enhanced permeation and retention effect.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000292055200077</style></accession-num><notes><style face="normal" font="default" size="100%">Agarwal, Abhiruchi Mackey, Megan A. El-Sayed, Mostafa A. Bellamkonda, Ravi V.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/nn201010q</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Hesabi, Z. R.</style></author><author><style face="normal" font="default" size="100%">Allam, N. K.</style></author><author><style face="normal" font="default" size="100%">Dahmen, K.</style></author><author><style face="normal" font="default" size="100%">Garmestani, H.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Self-Standing Crystalline TiO(2) Nanotubes/CNTs Heterojunction Membrane: Synthesis and Characterization</style></title><secondary-title><style face="normal" font="default" size="100%">Acs Applied Materials &amp; Interfaces</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Apr</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">4</style></number><volume><style face="normal" font="default" size="100%">3</style></volume><pages><style face="normal" font="default" size="100%">952-955</style></pages><isbn><style face="normal" font="default" size="100%">1944-8244</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">In the present study, we report for the first time synthesis of TiO(2) nanotubes/CNTs heterojunction membrane. Chemical vapor deposition (CVD) of CNTs at 650 degrees C in a mixture of H(2)/He atmosphere led to in situ detachment of the anodically fabricated TiO(2) nanotube layers from the Ti substrate underneath. Morphological and structural evolution of TiO(2) nanotubes after CNTs deposition were investigated by field- emission scanning electron microscopy (FESEM), glancing angle X-ray diffraction (GAXRD), and X-ray photoelectron spectroscopy (XPS) analyses.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000289762400006</style></accession-num><notes><style face="normal" font="default" size="100%">Hesabi, Zohreh R. Allam, Nageh K. Dahmen, Klaus Garmestani, Hamid El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/am200124p</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Allam, N. K.</style></author><author><style face="normal" font="default" size="100%">Poncheri, A. J.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Vertically Oriented Ti-Pd Mixed Oxynitride Nanotube Arrays for Enhanced Photoelectrochemical Water Splitting</style></title><secondary-title><style face="normal" font="default" size="100%">Acs Nano</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jun</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">6</style></number><volume><style face="normal" font="default" size="100%">5</style></volume><pages><style face="normal" font="default" size="100%">5056-5066</style></pages><isbn><style face="normal" font="default" size="100%">1936-0851</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">In recent years, considerable efforts have been made to design and discover photoactive nanostructured materials that can be used as anodes in water photoelectrolysis cells. Herein, we report on the growth of a novel photoanode material composed of self-ordered, vertically oriented nanotube arrays of titanium palladium mixed oxynitride films via anodization of Ti-Pd alloy in an electrolyte solution of formamide containing NH(4)F at room temperature, followed by annealing in an ammonia atmosphere. The nanostructure topology was found to depend on both the anodization time and the applied voltage. Our results demonstrate the ability to grow mixed oxynitride nanotube array films that are several micrometers thick. The Ti-Pd oxynitride nanotube array films were utilized In solar-spectrum water photoelectrolysis, demonstrating a photocurrent density of 1.9 mA/cm(2) and a similar to 5-fold increase in the photoconversion efficiency under AM 1.5 illumination (100 mW/cm(2), 1.0 M KOH) compared to pure TiO(2) nanotubes fabricated and tested under the same conditions; The obtained efficiency is among the highest reported values for a TiO(2) nanotube-based photoelectrochemical cell. This enhancement in the photoconversion efficiency is related to the synergistic effects of Pd alloying, nitrogen doping, and the unique structural properties of the fabricated nanotube arrays.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000292055200093</style></accession-num><notes><style face="normal" font="default" size="100%">Allam, Nageh K. Poncheri, Adam J. El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/nn201136t</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Allam, N. K.</style></author><author><style face="normal" font="default" size="100%">Alamgir, F.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Enhanced Photoassisted Water Electrolysis Using Vertically Oriented Anodically Fabricated Ti-Nb-Zr-O Mixed Oxide Nanotube Arrays</style></title><secondary-title><style face="normal" font="default" size="100%">Acs Nano</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2010</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">10</style></number><volume><style face="normal" font="default" size="100%">4</style></volume><pages><style face="normal" font="default" size="100%">5819-5826</style></pages><isbn><style face="normal" font="default" size="100%">1936-0851</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Self-ordered, highly oriented arrays of titanium-niobium-zirconium mixed oxide nanotube films were fabricated by the anodization of Ti(35)Nb(5)Zr alloy in aqueous and formamide electrolytes containing NH(4)F at room temperature. The nanostructure topology was found to depend on the nature of the electrolyte and the applied voltage. Our results demonstrate the possibility to grow mixed oxide nanotube array films possessing several-micrometer-thick layers by a simple and straightforward electrochemical route. The fabricated Ti-Nb-Zr-O nanotubes showed a similar to 17.5% increase in the photoelectrochemical water oxidation efficiency as compared to that measured for pure TiO(2) nanotubes under UV illumination (100 mW/cm(2), 320-400 nm, 1 M KOH). This enhancement could be related to a combination of the effect of the thin wall of the fabricated Ti-Nb-Zr-O nanotubes (10 +/- 2 nm) and the formation of Zr oxide and Nb oxide layers on the nanotube surface, which seems to slow down the electron-hole recombination in a way similar to that reported for Gratzel solar cells.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000283453700046</style></accession-num><notes><style face="normal" font="default" size="100%">Allam, Nageh K. Alamgir, Faisal El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/nn101678n</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Allam, N. K.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Photoelectrochemical Water Oxidation Characteristics of Anodically Fabricated TiO(2) Nanotube Arrays: Structural and Optical Properties</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Physical Chemistry C</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2010</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jul</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">27</style></number><volume><style face="normal" font="default" size="100%">114</style></volume><pages><style face="normal" font="default" size="100%">12024-12029</style></pages><isbn><style face="normal" font="default" size="100%">1932-7447</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">There are currently immense needs to optimize low-cost materials, such as TiO(2), so they can efficiently split water photoelectrochemically into hydrogen and oxygen, thus providing a clean energy fuel. To this end, the nature of the crystalline phase and the dimension of the photocatalyst are of crucial significance. In this study, films of 7 mu m long titania nanotube arrays were fabricated via anodization of titanium foil in formamide electrolytes containing NH(4)F and H(3)PO(4). Upon annealing the as-anodized nanotubes, the anatase-to-rutile phase transformation was found to start at 550 degrees C, which is about 120 degrees C above the temperature observed for the 500 nm long nanotube films, with the nanotube films remaining stable up to 580 degrees C. Analysis of the variation of crystallite size with annealing temperature along with XPS analysis of the films was used to investigate the reason behind this observation. UV-vis measurements showed that the absorption edges of the annealed samples were red shifted from that of the as-anodized sample. The stabilization of the anatase phase up to 550 degrees C, while keeping the tubular structure in place, is very significant as anatase is the most photoactive polymorph of titania. Besides, the 7 mu m long nanotubular structure provides a large surface medium for light utilization through scattering. Used as photoanodes to photoelectrochemically split water, the 580 degrees C crystallized nanotube arrays showed a three-electrode photoconversion efficiency of 10% under UV illumination (100 mW/cm(2), 320-400 nm, 1 M KOH).</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000279507900050</style></accession-num><notes><style face="normal" font="default" size="100%">Allam, Nageh K. El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/jp1037014</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Hayden, S. C.</style></author><author><style face="normal" font="default" size="100%">Allam, N. K.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">TiO(2) Nanotube/CdS Hybrid Electrodes: Extraordinary Enhancement in the Inactivation of Escherichia coli</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of the American Chemical Society</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2010</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">41</style></number><volume><style face="normal" font="default" size="100%">132</style></volume><pages><style face="normal" font="default" size="100%">14406-14408</style></pages><isbn><style face="normal" font="default" size="100%">0002-7863</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Titanium dioxide nanotubes offer distinct advantages over films of the same material in the production of hydroxyl radicals and subsequent inactivation of Escherichia coli in wastewater. However, their visible light absorption capabilities are limited. Semiconducting nanocrystals of cadmium sulfide have been used to increase the sensitivity of TiO(2) nanotubes to visible light. A small applied potential, using CdS-coated TiO(2) nanotube arrays, allowed for total inactivation of E. call in hitherto record short time.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000283276800030</style></accession-num><notes><style face="normal" font="default" size="100%">Hayden, Steven C. Allam, Nageh K. El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/ja107034z</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Talaat, M. H.</style></author><author><style face="normal" font="default" size="100%">Abdallah, T.</style></author><author><style face="normal" font="default" size="100%">Mohamed, MB</style></author><author><style face="normal" font="default" size="100%">Negm, S.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The sensitivity of the energy band gap to changes in the dimensions of the CdSe quantum rods at room temperature: STM and theoretical studies</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical Physics Letters</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">May</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">4-6</style></number><volume><style face="normal" font="default" size="100%">473</style></volume><pages><style face="normal" font="default" size="100%">288-292</style></pages><isbn><style face="normal" font="default" size="100%">0009-2614</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The energy band gap of a series of different sizes of CdSe quantum rods have been determined by STM technique at room temperature. The results confirm that the band gap of CdSe quantum rods (QRs) depends mainly on the width (the dimension of the electron confinement) and only slightly on the length as shown previously in the literatures. The experimental data is compared to that calculated using two theoretical models, the effective mass approximation (EMA) and the semi-empirical pseudopotential method (SEPM). The theoretical values for the energy band gap at varying radius are in agreement with the experimental results within 0.08 eV. (c) 2008 Published by Elsevier B.V.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000265908600015</style></accession-num><notes><style face="normal" font="default" size="100%">Talaat, H. Abdallah, T. Mohamed, M. B. Negm, S. El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1016/j.cplett.2008.11.025</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Link, Stephan</style></author><author><style face="normal" font="default" size="100%">Furube, A.</style></author><author><style face="normal" font="default" size="100%">Mohamed, MB</style></author><author><style face="normal" font="default" size="100%">Asahi, T.</style></author><author><style face="normal" font="default" size="100%">Masuhara, H.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Hot electron relaxation dynamics of gold nanoparticles embedded in MgSO4 powder compared to solution: The effect of the surrounding medium</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Physical Chemistry B</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2002</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Feb</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">5</style></number><volume><style face="normal" font="default" size="100%">106</style></volume><pages><style face="normal" font="default" size="100%">945-955</style></pages><isbn><style face="normal" font="default" size="100%">1520-6106</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">To test the influence of the surrounding medium on the relaxation dynamics of the plasmon band bleach recovery of gold nanoparticles after excitation with femtosecond laser pulses, we embedded 14.5 and 12.1 nm colloidal gold nanoparticles (synthesized electrochemically) in MgSO4 powder and investigated these samples by femtosecond diffuse reflectance spectroscopy. By measuring the relaxation dynamics over a wide range of excitation energies, we found that the fast decay component is slower by about a factor of 2 for the particles in the MgSO4 powder compared to those in solution while no significant change in the slow decay component is observed. In agreement with this observation, we found that adding solvent to the particles embedded in the powder caused a decrease in the relaxation time from about 10 ps to 5 ps for the fast decay component. This leads to the conclusion that the electron-phonon relaxation in these gold nanoparticles depends on the chemical nature and/or physical phase (solid vs solution) of the surrounding medium. A discussion of this in terms of the type of phonon involved, and the nature of the electron-phonon and phonon-phonon relaxation processes is discussed. To our knowledge, this also presents the first time that a transient bleach could be observed by diffuse reflectance spectroscopy.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000173692100010</style></accession-num><notes><style face="normal" font="default" size="100%">Link, S Furube, A Mohamed, MB Asahi, T Masuhara, H El-Sayed, MA</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/jp013311k</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Mohamed, MB</style></author><author><style face="normal" font="default" size="100%">Ahmadi, Temer S.</style></author><author><style face="normal" font="default" size="100%">Link, Stephan</style></author><author><style face="normal" font="default" size="100%">Braun, Markus</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Hot electron and phonon dynamics of gold nanoparticles embedded in a gel matrix</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical Physics Letters</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2001</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jul</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">1-2</style></number><volume><style face="normal" font="default" size="100%">343</style></volume><pages><style face="normal" font="default" size="100%">55-63</style></pages><isbn><style face="normal" font="default" size="100%">0009-2614</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Using pump-probe technique, the dynamics of the hot carriers in metallic nanodots induced by femtosecond laser pulses are investigated in gold nanoparticles embedded in hydrogel and in organic gel and compared to that in aqueous solution. We found that changing the surrounding matrix from aqueous solution to hydrogel and then to organic gel leads to a large increase in the relaxation time of both the electron-phonon (e-ph) and the phonon-phonon (ph-ph) coupling. Furthermore, the ph-ph relaxation time becomes sensitive to the type of the organic solvent trapped in the gel network. This indicates that the relaxation dynamics depend on the thermal conductivity, chemical structure and the molecular dynamics of the surrounding medium. (C) 2001 Elsevier Science BN. All rights reserved.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000170144200010</style></accession-num><notes><style face="normal" font="default" size="100%">Mohamed, MB Ahmadi, TS Link, S Braun, M El-Sayed, MA</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1016/s0009-2614(01)00653-4</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Burda, Clemens</style></author><author><style face="normal" font="default" size="100%">Abdel-Kader, M. H.</style></author><author><style face="normal" font="default" size="100%">Link, Stephan</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Femtosecond dynamics of a simple merocyanine dye: Does deprotonation compete with isomerization?</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of the American Chemical Society</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2000</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jul</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">28</style></number><volume><style face="normal" font="default" size="100%">122</style></volume><pages><style face="normal" font="default" size="100%">6720-6726</style></pages><isbn><style face="normal" font="default" size="100%">0002-7863</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The primary photochemistry of the trans isomer of a simple merocyanine dye of the stilbazolium betaine type 1-methyl-4-(4&#039;-hydroxytyryl)pyridinium betaine (M-trans) and its conjugate acid MHtrans+ in aqueous solution is studied by femtosecond time-resolved pump probe spectroscopy. The measured rate of the primary photodynamics is determined to be k = 1.1 x 10(12) s(-1) for M-trans at pH 10 and 0.8 x 10(12) s(-1) for MHtrans+ at pH 6. This was assigned to either conformational changes or a simple vibrational relaxation before the actual isomerization takes place. Wavelength excitation studies give support for the former assignment. These results an discussed in terms of the recent results found for the primary processes of retinal in bacteriorhodopsin. Time-resolved transient measurements show that no excited-state deprotonation of MHtrans+ occurs in aqueous solutions at pH 6 or pH 0, suggesting that the deprotonation occurs on a longer time scale than the picosecond time domain. This is in agreement with present theories of intermolecular proton-transfer reactions, which require solvent reorganization as well as the time of deprotonation estimated from the pK(a) value of this molecule in the excited state. The results of our MO calculations on the electronic structure of these two compounds could account for the fact that, while MHtrans+ photoisomerizes, its deprotonated form does not.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000088320700023</style></accession-num><notes><style face="normal" font="default" size="100%">Burda, C Abdel-Kader, MH Link, S El-Sayed, MA</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/ja993940w</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ahmadi, Temer S.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Effect of Lattice Energy Mismatch on the Relative Mass Peak Intensities of Mixed Alkali Halide Nanocrystals</style></title><secondary-title><style face="normal" font="default" size="100%">The Journal of Physical Chemistry A</style></secondary-title><short-title><style face="normal" font="default" size="100%">J. Phys. Chem. A</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">1997</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1997</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1021/jp962045l</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">American Chemical Society</style></publisher><volume><style face="normal" font="default" size="100%">101</style></volume><pages><style face="normal" font="default" size="100%">690 - 693</style></pages><isbn><style face="normal" font="default" size="100%">1089-5639</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The relative mass peak intensity distribution of the [M14-nAnI13]+ mixed alkali halide nanocrystals containing a ?magic? number of 14 metal cations (M and A) and 13 iodide anions is examined. These nanocrystals were generated through sputtering of mixed solid alkali halides using fast atom bombardment and analyzed by use of a double-focusing sector field mass spectrometer. The mass peak intensities of mixed cluster ions composed of two different metals relative to the ?pure? nanocrystals (containing one or the other metal) are compared for two types of mixed cluster ions:? one with small lattice energy mismatch, i.e., [Rb14-nKnI13]+ cluster ions, and the other type with large lattice energy mismatch, i.e., [Cs14-nAnI13]+ cluster ions where A is either Na, K, or Rb. In contrast to what was previously1 found for clusters with small energy mismatch in which the rate of formation (which depends on the possible number of isomers that each mixed cluster ion can have) determines the relative intensities of mass peaks, the rate of evaporation (i.e., the cluster instability) determines the relative mass peak intensities in salts with relatively large lattice energy mismatch. These results are consistent with our previously proposed kinetic model for the formation and decay of these clusters.The relative mass peak intensity distribution of the [M14-nAnI13]+ mixed alkali halide nanocrystals containing a ?magic? number of 14 metal cations (M and A) and 13 iodide anions is examined. These nanocrystals were generated through sputtering of mixed solid alkali halides using fast atom bombardment and analyzed by use of a double-focusing sector field mass spectrometer. The mass peak intensities of mixed cluster ions composed of two different metals relative to the ?pure? nanocrystals (containing one or the other metal) are compared for two types of mixed cluster ions:? one with small lattice energy mismatch, i.e., [Rb14-nKnI13]+ cluster ions, and the other type with large lattice energy mismatch, i.e., [Cs14-nAnI13]+ cluster ions where A is either Na, K, or Rb. In contrast to what was previously1 found for clusters with small energy mismatch in which the rate of formation (which depends on the possible number of isomers that each mixed cluster ion can have) determines the relative intensities of mass peaks, the rate of evaporation (i.e., the cluster instability) determines the relative mass peak intensities in salts with relatively large lattice energy mismatch. These results are consistent with our previously proposed kinetic model for the formation and decay of these clusters.</style></abstract><issue><style face="normal" font="default" size="100%">4</style></issue><notes><style face="normal" font="default" size="100%">doi: 10.1021/jp962045l</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">doi: 10.1021/jp962045l</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Logunov, Stephan L.</style></author><author><style face="normal" font="default" size="100%">Ahmadi, Temer S.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author><author><style face="normal" font="default" size="100%">Khoury, J. T.</style></author><author><style face="normal" font="default" size="100%">Whetten, R. L.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Electron Dynamics of Passivated Gold Nanocrystals Probed by Subpicosecond Transient Absorption Spectroscopy</style></title><secondary-title><style face="normal" font="default" size="100%">The Journal of Physical Chemistry B</style></secondary-title><short-title><style face="normal" font="default" size="100%">J. Phys. Chem. B</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">1997</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1997</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1021/jp962923f</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">American Chemical Society</style></publisher><volume><style face="normal" font="default" size="100%">101</style></volume><pages><style face="normal" font="default" size="100%">3713 - 3719</style></pages><isbn><style face="normal" font="default" size="100%">1520-6106</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The electronic dynamics of gold nanocrystals, passivated by a monolayer of alkylthiol(ate) groups, were studied by transient spectroscopy after excitation with subpicosecond laser pulses. Three solution-phase gold samples with average particle size of 1.9, 2.6, and 3.2 nm with size distribution less than 10% were used. The photoexcitation in the intraband (surface plasmon region) leads to the heating of the conduction electron gas and its subsequent thermalization through electron?electron and electron?phonon interaction. The results are analyzed in terms of the contribution of the equilibrated ?hot? electrons to the surface plasmon resonance of gold. A different spectral response was observed for different sizes of gold nanoparticles. The results were compared to the dynamics of the large (30 nm diameter) gold nanocrystals colloidal solution. The size-dependent spectral changes are attributed to the reduction of the density of states for small nanoparticles. The observed variation in the kinetics of the cooling process in gold nanoparticles with changing the laser intensity is attributed to the temperature dependence of the heat capacity of the electron gas.The electronic dynamics of gold nanocrystals, passivated by a monolayer of alkylthiol(ate) groups, were studied by transient spectroscopy after excitation with subpicosecond laser pulses. Three solution-phase gold samples with average particle size of 1.9, 2.6, and 3.2 nm with size distribution less than 10% were used. The photoexcitation in the intraband (surface plasmon region) leads to the heating of the conduction electron gas and its subsequent thermalization through electron?electron and electron?phonon interaction. The results are analyzed in terms of the contribution of the equilibrated ?hot? electrons to the surface plasmon resonance of gold. A different spectral response was observed for different sizes of gold nanoparticles. The results were compared to the dynamics of the large (30 nm diameter) gold nanocrystals colloidal solution. The size-dependent spectral changes are attributed to the reduction of the density of states for small nanoparticles. The observed variation in the kinetics of the cooling process in gold nanoparticles with changing the laser intensity is attributed to the temperature dependence of the heat capacity of the electron gas.</style></abstract><issue><style face="normal" font="default" size="100%">19</style></issue><notes><style face="normal" font="default" size="100%">doi: 10.1021/jp962923f</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Jung, Kwang-Woo</style></author><author><style face="normal" font="default" size="100%">Ahmadi, Temer S.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Photofragment translational spectroscopy of CH2I2 at 304 nm: Polarization dependence and energy partitioning</style></title><secondary-title><style face="normal" font="default" size="100%">Bulletin of the Korean Chemical Society</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1997</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Dec</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">12</style></number><volume><style face="normal" font="default" size="100%">18</style></volume><pages><style face="normal" font="default" size="100%">1274-1280</style></pages><isbn><style face="normal" font="default" size="100%">0253-2964</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The photodissociation dynamics of CH2I2 has been studied at 304 nm by state-selective photofragment translational spectroscopy. Velocity distributions, anisotropy parameters, and relative quantum yields are obtained for the ground I(P-2(3/2)) and spin-orbit excited state I*(P-2(1/2)) iodine atoms, which are produced from photodissociation of CH2I2 at this wavelength. These processes are found to occur via B-1 &lt;-- A(1) type electronic transitions. The quantum yield of I*(P-2(1/2)) is determined to be 0.25, indicating that the formation of ground state iodine is clearly the favored dissociation channel in the 304 nm wavelength region. From the angular distribution of dissociation products, the anisotropy parameters are determined to be beta(I)=0.4 for the I(P-2(3/2)) and beta (I*)=0.55 for the I*(P-2(1/2)) which substantially differ from the limiting value of 1.13. The positive values of anisotropy parameter, however, show that the primary processes for I and I* formation channels proceed dominantly via a transition which is parallel to I-I axis. The above results are interpreted in terms of dual path formation of iodine atoms from two different excited states, i.e., a direct and an indirect dissociation via curve crossing between these states. The translational energy distributions of recoil fragments reveal that a large fraction of the available energy goes into the internal excitation of the CH2I photofragment; &lt;E-int&gt;/E-avl=0.80 and 0.82 for the I and I* formation channels, respectively. The quantitative analysis for the energy partitioning of available energy into the photofragments is used to compare the experimental results with the prediction of direct impulsive model for photodissociation dynamics.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000071415300015</style></accession-num><notes><style face="normal" font="default" size="100%">Jung, KW Ahmadi, TS El-Sayed, MA</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Jung, Kwang-Woo</style></author><author><style face="normal" font="default" size="100%">Ahmadi, Temer S.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Photofragment Translational Spectroscopy of ICl at 304 nm</style></title><secondary-title><style face="normal" font="default" size="100%">The Journal of Physical Chemistry A</style></secondary-title><short-title><style face="normal" font="default" size="100%">J. Phys. Chem. A</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">1997</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1997</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1021/jp970837p</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">American Chemical Society</style></publisher><volume><style face="normal" font="default" size="100%">101</style></volume><pages><style face="normal" font="default" size="100%">6562 - 6567</style></pages><isbn><style face="normal" font="default" size="100%">1089-5639</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The photodissociation dynamics of ICl is studied at 304 nm by state-selective photofragment translational spectroscopy. Velocity distributions, anisotropy parameters, and relative quantum yields are obtained for the ground I(2P3/2) and spin?orbit excited state I*(2P1/2) iodine atoms, which are produced from photodissociation of ICl at this wavelength. Two sharp velocity distributions are observed for the I channel, suggesting the existence of two dissociation pathways that correlate with ground state iodine formation. Based on the expected translational energy release and the energy separation between those peaks, the two distributions are assigned to dissociation of ICl to I(2P3/2) + Cl(2P3/2) and to I(2P3/2) + Cl*(2P1/2); the former channel appears at higher translational energy. The distribution of I* also shows two strong peaks, indicating that there are two dominant channels for the formation of I* atoms at this wavelength which we assign to the dissociation of ICl forming I*(2P1/2) + Cl(2P3/2) and I*(2P1/2) + Cl*(2P1/2), respectively. The quantum yield of I*(2P1/2) is determined to be 0.30, indicating that the formation of ground state iodine is clearly the favored dissociation channel at 304 nm. The observed anisotropy in the angular distribution of dissociation products (?) indicates that the I* + Cl and I* + Cl* channels are formed predominantly from the parallel transition (? = 1.7 for both channels) while the I + Cl and I + Cl* products are formed mainly from perpendicular transitions (? = ?0.5). The decrease in the anisotropy parameter of the I formation channels from their limiting value of ?1 is attributed to the presence of more than one path for the formation of I + Cl/Cl* photoproducts with opposite polarization for their absorbing transitions. The possible excited state dynamics, which give the observed results, are discussed in terms of the previously proposed energy correlation diagram for ICl.The photodissociation dynamics of ICl is studied at 304 nm by state-selective photofragment translational spectroscopy. Velocity distributions, anisotropy parameters, and relative quantum yields are obtained for the ground I(2P3/2) and spin?orbit excited state I*(2P1/2) iodine atoms, which are produced from photodissociation of ICl at this wavelength. Two sharp velocity distributions are observed for the I channel, suggesting the existence of two dissociation pathways that correlate with ground state iodine formation. Based on the expected translational energy release and the energy separation between those peaks, the two distributions are assigned to dissociation of ICl to I(2P3/2) + Cl(2P3/2) and to I(2P3/2) + Cl*(2P1/2); the former channel appears at higher translational energy. The distribution of I* also shows two strong peaks, indicating that there are two dominant channels for the formation of I* atoms at this wavelength which we assign to the dissociation of ICl forming I*(2P1/2) + Cl(2P3/2) and I*(2P1/2) + Cl*(2P1/2), respectively. The quantum yield of I*(2P1/2) is determined to be 0.30, indicating that the formation of ground state iodine is clearly the favored dissociation channel at 304 nm. The observed anisotropy in the angular distribution of dissociation products (?) indicates that the I* + Cl and I* + Cl* channels are formed predominantly from the parallel transition (? = 1.7 for both channels) while the I + Cl and I + Cl* products are formed mainly from perpendicular transitions (? = ?0.5). The decrease in the anisotropy parameter of the I formation channels from their limiting value of ?1 is attributed to the presence of more than one path for the formation of I + Cl/Cl* photoproducts with opposite polarization for their absorbing transitions. The possible excited state dynamics, which give the observed results, are discussed in terms of the previously proposed energy correlation diagram for ICl.</style></abstract><issue><style face="normal" font="default" size="100%">36</style></issue><notes><style face="normal" font="default" size="100%">doi: 10.1021/jp970837p</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">doi: 10.1021/jp970837p</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Wang, Z.L.</style></author><author><style face="normal" font="default" size="100%">Ahmad, TS</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Steps, ledges and kinks on the surfaces of platinum nanoparticles of different shapes</style></title><secondary-title><style face="normal" font="default" size="100%">Surface science</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1997</style></year></dates><publisher><style face="normal" font="default" size="100%">Elsevier</style></publisher><volume><style face="normal" font="default" size="100%">380</style></volume><pages><style face="normal" font="default" size="100%">302-310</style></pages><isbn><style face="normal" font="default" size="100%">0039-6028</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Platinum nanoparticles with a high percentage of cubic-, tetrahedral- and octahedral-like shapes, respectively, have been synthesized by a shape-controlling technique that we developed recently [Ahmadi et al., Science 272 (June 1996) 1924]. High resolution transmission electron microscopy (HRTEM) is used here to directly image the atomic scale structures of the surfaces of these particles with different shapes. The truncated shapes of these particles are mainly defined by the {100}, {111}, and {110} facets, on which numerous atom-high surface steps, ledges and kinds have been observed. This atomic-scale fine structure of the surfaces of these particles is expected to play a critical role in their catalytic activity and selectivity.</style></abstract><issue><style face="normal" font="default" size="100%">2-3</style></issue><electronic-resource-num><style face="normal" font="default" size="100%">10.1016/S0039-6028(97)05180-7 </style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ahmadi, Temer S.</style></author><author><style face="normal" font="default" size="100%">Wang, Z.L.</style></author><author><style face="normal" font="default" size="100%">Henglein, A.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">“Cubic” Colloidal Platinum Nanoparticles</style></title><secondary-title><style face="normal" font="default" size="100%">Chemistry of Materials</style></secondary-title><short-title><style face="normal" font="default" size="100%">Chem. Mater.</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">1996</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1996</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1021/cm9601190</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">American Chemical Society</style></publisher><volume><style face="normal" font="default" size="100%">8</style></volume><pages><style face="normal" font="default" size="100%">1161 - 1163</style></pages><isbn><style face="normal" font="default" size="100%">0897-4756</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Cubic platinum nanoparticles (4-18 nm) have been synthesized for the first time in solution by the controlled reduction of K2PtCl4 with hydrogen gas in the presence of sodium polyacrylate as a capping material. The nanoparticles are found to have fee structures, similar to the bulk metal with {100} facets.</style></abstract><issue><style face="normal" font="default" size="100%">6</style></issue><notes><style face="normal" font="default" size="100%">doi: 10.1021/cm9601190</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/cm9601190</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ahmadi, Temer S.</style></author><author><style face="normal" font="default" size="100%">Logunov, Stephan L.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Picosecond Dynamics of Colloidal Gold Nanoparticles</style></title><secondary-title><style face="normal" font="default" size="100%">The Journal of Physical Chemistry</style></secondary-title><short-title><style face="normal" font="default" size="100%">J. Phys. Chem.</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">1996</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1996</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1021/jp960484e</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">American Chemical Society</style></publisher><volume><style face="normal" font="default" size="100%">100</style></volume><pages><style face="normal" font="default" size="100%">8053 - 8056</style></pages><isbn><style face="normal" font="default" size="100%">0022-3654</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Colloidal gold nanoparticles with an average radius of 15 nm have a surface plasmon absorption band at 530 nm. Excitation by laser pulses of 450 fs duration, and wavelength of 600 or 380 nm ?bleached? the plasmon band and produced a transient absorption at the wings of the ?bleach? spectrum. The transient absorption was found to have a similar temporal behavior at different wavelengths. Analysis of their temporal behavior showed two time constants:? 2.5 ps, and a slower component of &gt;50 ps. Laser excitation close to the plasmon band at 600 nm leads to the formation of ?hot? non-Fermi electronic distribution within the colloidal particles. Transient absorption from these ?hot? electrons led to different absorptions from that of the plasmon absorption of ?cold? electrons. The ?hot? electrons relax via electron?phonon coupling in 2.5 ps, and the phonon?phonon relaxation of the lattice occurs in &gt;50 ps. At 380 nm excitation, the amplitude of the blue wing becomes smaller, and the slow component becomes longer, which could be due to possible excitation of the d-band electrons. These results are discussed in terms of Mie theory and a two-temperature model (TTM), and their consequences on the optical absorption spectrum.Colloidal gold nanoparticles with an average radius of 15 nm have a surface plasmon absorption band at 530 nm. Excitation by laser pulses of 450 fs duration, and wavelength of 600 or 380 nm ?bleached? the plasmon band and produced a transient absorption at the wings of the ?bleach? spectrum. The transient absorption was found to have a similar temporal behavior at different wavelengths. Analysis of their temporal behavior showed two time constants:? 2.5 ps, and a slower component of &gt;50 ps. Laser excitation close to the plasmon band at 600 nm leads to the formation of ?hot? non-Fermi electronic distribution within the colloidal particles. Transient absorption from these ?hot? electrons led to different absorptions from that of the plasmon absorption of ?cold? electrons. The ?hot? electrons relax via electron?phonon coupling in 2.5 ps, and the phonon?phonon relaxation of the lattice occurs in &gt;50 ps. At 380 nm excitation, the amplitude of the blue wing becomes smaller, and the slow component becomes longer, which could be due to possible excitation of the d-band electrons. These results are discussed in terms of Mie theory and a two-temperature model (TTM), and their consequences on the optical absorption spectrum.</style></abstract><issue><style face="normal" font="default" size="100%">20</style></issue><notes><style face="normal" font="default" size="100%">doi: 10.1021/jp960484e</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ahmadi, Temer S.</style></author><author><style face="normal" font="default" size="100%">Wang, Z.L.</style></author><author><style face="normal" font="default" size="100%">Green, T.C.</style></author><author><style face="normal" font="default" size="100%">Henglein, A.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Shape-Controlled Synthesis of Colloidal Platinum Nanoparticles</style></title><secondary-title><style face="normal" font="default" size="100%">Science (New York, N.Y.)</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Science</style></alt-title></titles><dates><year><style  face="normal" font="default" size="100%">1996</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1996 Jun 28</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">272</style></volume><pages><style face="normal" font="default" size="100%">1924-6</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The shapes and sizes of platinum nanoparticles were controlled by changes in the ratio of the concentration of the capping polymer material to the concentration of the platinum cations used in the reductive synthesis of colloidal particles in solution at room temperature. Tetrahedral, cubic, irregular-prismatic, icosahedral, and cubo-octahedral particle shapes were observed, whose distribution was dependent on the concentration ratio of the capping polymer material to the platinum cation. Controlling the shape of platinum nanoparticles is potentially important in the field of catalysis.</style></abstract><issue><style face="normal" font="default" size="100%">5270</style></issue><custom1><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/8662492?dopt=Abstract</style></custom1><electronic-resource-num><style face="normal" font="default" size="100%">10.1126/science.272.5270.1924</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Yoo, Seoung-Kyo</style></author><author><style face="normal" font="default" size="100%">Awad, Elias S.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Comparison between the Binding of Ca2+ and Mg2+ to the Two High-Affinity Sites of Bacteriorhodopsin</style></title><secondary-title><style face="normal" font="default" size="100%">The Journal of Physical Chemistry</style></secondary-title><short-title><style face="normal" font="default" size="100%">J. Phys. Chem.</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">1995</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1995</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1021/j100029a043</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">American Chemical Society</style></publisher><volume><style face="normal" font="default" size="100%">99</style></volume><pages><style face="normal" font="default" size="100%">11600 - 11604</style></pages><isbn><style face="normal" font="default" size="100%">0022-3654</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">See http://dx.doi.org/10.1021/j100029a043 for article&#039;s front page in lieu of an abstract </style></abstract><issue><style face="normal" font="default" size="100%">29</style></issue><notes><style face="normal" font="default" size="100%">doi: 10.1021/j100029a043</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">doi: 10.1021/j100029a043</style></electronic-resource-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ahmadi, Temer S.</style></author><author><style face="normal" font="default" size="100%">El-Sayed, Mostafa A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Dynamics of Formation and Evaporation of Mixed Alkali Halide Nanocrystals: A Case of Comparable Lattice Energies</style></title><secondary-title><style face="normal" font="default" size="100%">The Journal of Physical Chemistry</style></secondary-title><short-title><style face="normal" font="default" size="100%">J. Phys. Chem.</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">1994</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1994</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1021/j100095a013</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">American Chemical Society</style></publisher><volume><style face="normal" font="default" size="100%">98</style></volume><pages><style face="normal" font="default" size="100%">11316 - 11320</style></pages><isbn><style face="normal" font="default" size="100%">0022-3654</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">View http://dx.doi.org/10.1021/j100095a013 for article&#039;s front page in lieu of an abstract</style></abstract><issue><style face="normal" font="default" size="100%">44</style></issue><notes><style face="normal" font="default" size="100%">doi: 10.1021/j100095a013</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">doi: 10.1021/j100095a013</style></electronic-resource-num></record></records></xml>