Manoj AG, Narayan KS. Opto-electrical processes in a conducting polymer–bacteriorhodopsin system.
Biosens Bioelectron 2004;
19:1067-74. [PMID:
15018962 DOI:
10.1016/j.bios.2003.10.006]
[Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2003] [Revised: 09/09/2003] [Accepted: 10/09/2003] [Indexed: 11/15/2022]
Abstract
In this report, we highlight the opto-electrical processes at a conducting polymer-bacteriorhodopsin (bR) interface in presence of a voltage bias. Oriented bR on a conducting polymer substrate forms a unique hybrid system where the oxidation state of the polymer controls the optically activated proton gradient in the bR side. The internal conversion of the intermediate deprotonated M-state and the proton transfer/transport of bR at the interface can be controlled by the electrostatic environment and leads to interesting device features in this process.
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