title: Gold nanoparticles surface plasmon field effects on the proton pump process of the bacteriorhodopsin photosynthesis.
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.
authors.affiliation: School of Chemistry and Biochemistry, Laser Dynamic Laboratory, Georgia Institute of Technology, 770 State Street, Atlanta, Georgia 30332-0400, USA.
authors.forename: Arianna
authors.initials: A
authors.lastname: Biesso
authors.forename: Wei
authors.initials: W
authors.lastname: Qian
authors.forename: Xiaohua
authors.initials: X
authors.lastname: Huang
authors.forename: Mostafa A
authors.initials: MA
authors.lastname: El-Sayed
mesh_terms: D001436:Bacteriorhodopsins / Q000737:chemistry*; D000077286:Cetrimonium; D002593:Cetrimonium Compounds / Q000737:chemistry; D006046:Gold / Q000737:chemistry*; D019617:Halobacterium salinarum / Q000737:chemistry; D053844:Lasers, Solid-State; D053768:Metal Nanoparticles / Q000737:chemistry*; D010782:Photolysis; D010788:Photosynthesis; D017494:Proton Pumps / Q000737:chemistry*; D020349:Surface Plasmon Resonance
chemical_list: D002593:Cetrimonium Compounds; D017494:Proton Pumps; D001436:Bacteriorhodopsins; D006046:Gold; D000077286:Cetrimonium