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Title: Photochemical energy conversion by membrane-bound photoredox systems

Abstract

Most of our effort during the past grant period has been directed towards investigating electron transfer processes involving redox proteins at lipid bilayer/aqueous interfaces. This theme, as was noted in our previous three year renewal proposal, is consistent with our goal of developing biomimetic solar energy conversion systems which utilize the unique properties of biological electron transfer molecules. Thus, small redox proteins such as cytochrome c, plastocyanin and ferredoxin function is biological photosynthesis as mediators of electron flow between the photochemical systems localized in the membrane, and more complex soluble or membrane-bound redox proteins which are designed to carry out specific biological tasks such as transbilayer proton gradient formation, dinitrogen fixation, ATP synthesis, dihydrogen synthesis, generation of strong reductants, etc. In these studies, we have utilized two principal experimental techniques, laser flash photolysis and cyclic voltammetry, both of which permit direct measurements of electron transfer processes.

Authors:
Publication Date:
Research Org.:
Arizona Univ., Tucson, AZ (United States). Dept. of Biochemistry
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
5784171
Report Number(s):
DOE/ER/13631-18
ON: DE92008709
DOE Contract Number:  
FG02-86ER13631
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 59 BASIC BIOLOGICAL SCIENCES; PHOTOSYNTHESIS; ELECTRON TRANSFER; BIOMIMETIC PROCESSES; CYTOCHROMES; FERREDOXIN; MEMBRANES; PROGRESS REPORT; PROTEINS; REDUCING AGENTS; CHEMICAL REACTIONS; DOCUMENT TYPES; METALLOPROTEINS; ORGANIC COMPOUNDS; PHOTOCHEMICAL REACTIONS; PIGMENTS; SYNTHESIS; 140505* - Solar Energy Conversion- Photochemical, Photobiological, & Thermochemical Conversion- (1980-); 550200 - Biochemistry

Citation Formats

Tollin, G. Photochemical energy conversion by membrane-bound photoredox systems. United States: N. p., 1992. Web. doi:10.2172/5784171.
Tollin, G. Photochemical energy conversion by membrane-bound photoredox systems. United States. https://doi.org/10.2172/5784171
Tollin, G. 1992. "Photochemical energy conversion by membrane-bound photoredox systems". United States. https://doi.org/10.2172/5784171. https://www.osti.gov/servlets/purl/5784171.
@article{osti_5784171,
title = {Photochemical energy conversion by membrane-bound photoredox systems},
author = {Tollin, G},
abstractNote = {Most of our effort during the past grant period has been directed towards investigating electron transfer processes involving redox proteins at lipid bilayer/aqueous interfaces. This theme, as was noted in our previous three year renewal proposal, is consistent with our goal of developing biomimetic solar energy conversion systems which utilize the unique properties of biological electron transfer molecules. Thus, small redox proteins such as cytochrome c, plastocyanin and ferredoxin function is biological photosynthesis as mediators of electron flow between the photochemical systems localized in the membrane, and more complex soluble or membrane-bound redox proteins which are designed to carry out specific biological tasks such as transbilayer proton gradient formation, dinitrogen fixation, ATP synthesis, dihydrogen synthesis, generation of strong reductants, etc. In these studies, we have utilized two principal experimental techniques, laser flash photolysis and cyclic voltammetry, both of which permit direct measurements of electron transfer processes.},
doi = {10.2172/5784171},
url = {https://www.osti.gov/biblio/5784171}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Mar 01 00:00:00 EST 1992},
month = {Sun Mar 01 00:00:00 EST 1992}
}