<?xml version="1.0" encoding="UTF-8"?><xml><records><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%">Jain, Prashant K</style></author><author><style face="normal" font="default" size="100%">Huang, Wenyu</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%">On the universal scaling behavior of the distance decay of plasmon coupling in metal nanoparticle pairs: A plasmon ruler equation</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%">2007</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%">7</style></number><volume><style face="normal" font="default" size="100%">7</style></volume><pages><style face="normal" font="default" size="100%">2080-2088</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%">Localized surface plasmon resonances (LSPR) in lithographically fabricated gold (Au) nanodisc pairs are investigated using microabsorption spectroscopy and electrodynamic simulations. In agreement with previous work, we find that the fractional plasmon wavelength shift for polarization along the interparticle axis decays nearly exponentially with the interparticle gap. In addition, we find that the decay length is roughly about 0.2 in units of the particle size for different nanoparticle size, shape, metal type, or medium dielectric constant. The near-exponential distance decay and the interesting &quot;universal&quot; scaling behavior of interparticle plasmon coupling can be qualitatively explained on the basis of a dipolar-coupling model as being due to the interplay of two factors: the direct dependence of the single-particle polarizability on the cubic power of the particle dimension and the decay of the plasmonic near-field as the cubic power of the inverse distance. Using this universal scaling behavior, we are able to derive a &quot;plasmon ruler equation&quot; that estimates the interparticle separation between Au nanospheres in a biological system from the observed fractional shift of the plasmon band. We find good agreement of the interparticle separations estimated using this equation with the experimental observations of Reinhard et al.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000247926400043</style></accession-num><notes><style face="normal" font="default" size="100%">Jain, Prashant K. Huang, Wenyu El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1021/nl071008a</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%">Eustis, Susie</style></author><author><style face="normal" font="default" size="100%">Krylova, G.</style></author><author><style face="normal" font="default" size="100%">Smirnova, N.</style></author><author><style face="normal" font="default" size="100%">Eremenko, A.</style></author><author><style face="normal" font="default" size="100%">Tabor, C. E.</style></author><author><style face="normal" font="default" size="100%">Huang, Wenyu</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%">Using silica films and powders modified with benzophenone to photoreduce silver nanoparticles</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%">2006</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%">2-3</style></number><volume><style face="normal" font="default" size="100%">181</style></volume><pages><style face="normal" font="default" size="100%">385-393</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><abstract><style face="normal" font="default" size="100%">Porous silica (SiO2 films and powders), modified with benzophenone (BP), facilitates the formation of stable sliver nanoparticles by taking advantage of the solid supported photosensitizer. The silica serves as a carrier for the BP into an aqueous solution and its subsequent removal. Benzophenone, bound to a silica film, was able to reduce silver ions to generate nanoparticles in solution, while silica powder with bound BP generates silver nanoparticles that are attracted to the silica. Silver nanoparticles are also fabricated in porous silica films by incorporating silver ions into the films before casting and then irradiating the film in a solution containing BP. From pH studies, it is concluded that the ketyl-radicals and anion-radicals of BP and IPA both take part in the reduction of silver ions. These synthetic studies provide a new photochemical reduction method by immobilizing the reactant on a silica surface allowing generation of silver nanoparticles in solution attached to powders or inside a film for catalytic applications or increased conductivity of silica films. (c) 2006 Elsevier B.V. All rights reserved.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000238963700034</style></accession-num><notes><style face="normal" font="default" size="100%">Eustis, Susie Krylova, Galina Smirnova, Natalie Eremenko, Anna Tabor, Christopher Huang, Wenyu El-Sayed, Mostafa A.</style></notes><electronic-resource-num><style face="normal" font="default" size="100%">10.1016/j.jphotochem.2005.12.024</style></electronic-resource-num></record></records></xml>