Photochemical energy conversion by membrane-bound photoredox systems
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.
- Research Organization:
- Arizona Univ., Tucson, AZ (United States). Dept. of Biochemistry
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-86ER13631
- OSTI ID:
- 5784171
- Report Number(s):
- DOE/ER/13631-18; ON: DE92008709
- Country of Publication:
- United States
- Language:
- English
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Photochemical energy conversion by membrane-bound photoredox systems
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Related Subjects
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