pH-Dependent Photocurrent Response from Bacteriorhodopsin at Electrode-Electrolyte Interfaces
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The transient photocurrent response of bacteriorhodopsin (bR) at electrode-electrolyte interfaces showed a drastic pH dependence, reversing at a low pH. The ratio of the photocurrent by turning the light off to that at the onset of illumination, I<SUB>off</SUB>/I<SUB>on</SUB>, decreased systematically from 0.92 to 0 by raising pH. These results can neatly be correlated with the proton release/uptake sequence in the bR photocycle.
- Chemistry Letters
Chemistry Letters 1998(9), 961-962, 1998-09-05
The Chemical Society of Japan