Gold nanoparticles surface plasmon field effects on the proton pump process of the bacteriorhodopsin photosynthesis.
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.
Biesso
Arianna
A
School of Chemistry and Biochemistry, Laser Dynamic Laboratory, Georgia Institute of Technology, 770 State Street, Atlanta, Georgia 30332-0400, USA.
Qian
Wei
W
Huang
Xiaohua
X
El-Sayed
Mostafa A
MA
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
D002593:Cetrimonium Compounds; D017494:Proton Pumps; D001436:Bacteriorhodopsins; D006046:Gold; D000077286:Cetrimonium