Electric Field Asymmetry in the Photosynthetic Reaction Center?
โ Scribed by Saggu, Miguel; Boxer, Steven G.
- Book ID
- 122330695
- Publisher
- Biophysical Society
- Year
- 2014
- Tongue
- English
- Weight
- 95 KB
- Volume
- 106
- Category
- Article
- ISSN
- 0006-3495
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External electric field modulation of charge separation 2nd recombinatton processes has been achieved in native photosynthetic reaction centers. Langmuir-Blodgett monolayer films of reaction centers isolated from the photosynthetic bacterium Rhodopseudomonas sphaero~des, have been incorporated into
Electric field effects on reaction centers from Rb. sphaeroides have been detected in ps-transient absorption at 90 K. Upon application of a field of 7 X 10s V/cm the bleaching of the bacteriopheophytin at the A branch (H,, 545 nm) monitored after 30 ps mirrors a reduction of the quantum yield of P+