Two photobioelectrochemical applications of self-assembled films on mercury

被引：3

作者：

Buoninsegni, FT ^{[1
]}

Dolfi, A ^{[1
]}

Guidelli, R ^{[1
]}

机构：

[1] Univ Florence, Dept Chem, I-50019 Florence, Italy

来源：

COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS | 2004年 / 69卷 / 02期

关键词：

photobioelectrochemistry; photochemistry; electrochemistry; chlorophyll; bacteriorhodopsin; alkanethiol monolayers; mercury-supported films;

D O I：

10.1135/cccc20040292

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The homogeneous, defect-free surface of a hanging mercury drop electrode was used to self-assemble films apt for the investigation of two photobioelectrochemical systems. Monolayers of straight-chain C-12 -C-18 alkane-1-thiols were anchored to a hanging mercury drop electrode and a film of chlorophyll was self-assembled on the top of them. The dependence of the photocurrents generated by illumination of the chlorophyll film with red light, on the thickness of the alkane-1-thiol monolayer and the applied potential is discussed. The photocurrents of purple membrane fragments, adsorbed on a mixed hexadecane-1-thiol/ dioleoylphosphatidylcholine bilayer self-assembled on mercury, were investigated in the presence of sodium perchlorate, chloride and acetate. The effect of the anions on the kinetics of the light-driven proton transport by bacteriorhodopsin has been determined.

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页码：292 / 308

页数：17

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