@article {1119, title = {Gold Nanoparticles Surface Plasmon Field Effects on the Proton Pump Process of the Bacteriorhodopsin Photosynthesis}, journal = {Journal of the American Chemical Society}, volume = {131}, number = {7}, year = {2009}, note = {Biesso, Arianna Qian, Wei Huang, Xiaohua El-Sayed, Mostafa A.}, month = {Feb}, pages = {2442-+}, abstract = {The rate of the proton pump of bacteriorhodopsin photosynthetic system is examined in the presence of a gold nanorod plasmon field. It is found that while the rate of the proton dissociation from the protonated Schiff base is not affected, the rate of its reprotonation increases. These results are qualitatively discussed in terms of several possible mechanisms.}, isbn = {0002-7863}, doi = {10.1021/ja8088873}, author = {Biesso, A. and Qian, Wei and Huang, Xiaohua and El-Sayed, Mostafa A} } @article {1128, title = {Gigahertz optical modulation resulting from coherent lattice oscillations induced by femtosecond laser pumping of 2D photonic crystals of gold-capped polystyrene microspheres}, journal = {Advanced Materials}, volume = {20}, number = {4}, year = {2008}, note = {Huang, Wenyu Qian, Wei El-Sayed, Mostafa A.}, month = {Feb}, pages = {733-+}, abstract = {A gigahertz all-optical modulation technique, based on a mechanism in which the modulation of the transmitted light is caused by the coherent oscillation of the phonon modes of gold caps on periodic polystyrene sphere monolayer arrays, is demonstrated. The modulation frequency can be tuned by changing the size of the polystyrene spheres.}, isbn = {0935-9648}, doi = {10.1002/adma.200701543}, author = {Huang, Wenyu and Qian, Wei and El-Sayed, Mostafa A} } @article {1133, title = {Gold nanoparticle plasmonic field effect on the primary step of the other photosynthetic system in nature, bacteriorhodopsin}, journal = {Journal of the American Chemical Society}, volume = {130}, number = {11}, year = {2008}, note = {Biesso, Arianna Qian, Wei El-Sayed, Mostafa A.}, month = {Mar}, pages = {3258-+}, abstract = {In regards to the effect of the surface plasmon field of gold nanospheres on the rate of primary steps leading to retinal photoisomerization in the photosynthesis of bacterirhodopsin (bR), 4 is believed that the light absorption of bR that leads to its retinal isomerization first involves the formation of a highly polar electronic excited state (1460) of the all-trans isomer which strongly polarizes the protein around it. This is followed by its decay to a viibrationally excited 13-cis isomer (J(625)). The effect of plasmonic field of gold nanospheres of different sizes and concentrations is found to slow down the rate of the isomerization of the polar electronic excited-state to the J625 but has no effect on the vibration relaxation of the isomeric state itself. This is consistent with the electrostatic nature of the plasmonic field.}, isbn = {0002-7863}, doi = {10.1021/ja7099858}, author = {Biesso, A. and Qian, Wei and El-Sayed, Mostafa A} } @article {1154, title = {Gold nanoparticles propulsion from surface fueled by absorption of femtosecond laser pulse at their surface plasmon resonance}, journal = {Journal of the American Chemical Society}, volume = {128}, number = {41}, year = {2006}, note = {Huang, Wenyu Qian, Wei El-Sayed, Mostafa A.}, month = {Oct}, pages = {13330-13331}, isbn = {0002-7863}, doi = {10.1021/ja064328p}, author = {Huang, Wenyu and Qian, Wei and El-Sayed, Mostafa A} }