Photoelectric response of polarization sensitive bacteriorhodopsin films

Qun Li; Jeffrey A. Stuart; Robert R. Birge; Jian Xu; Andrew Stickrath; Pallab Bhattacharya

doi:10.1016/j.bios.2003.08.017

Photoelectric response of polarization sensitive bacteriorhodopsin films

Qun Li, Jeffrey A. Stuart, Robert R. Birge, Jian Xu, Andrew Stickrath, Pallab Bhattacharya

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Polarization sensitivity is introduced into oriented bacteriorhodopsin (BR) films through a photochemical bleaching process, which chemically modifies the structure of the purple membrane by breaking the intrinsic symmetry of the membrane-bound BR trimers. The resulting photovoltage generated in an indium-tin oxide (ITO)/BR/ITO detector is found to be anisotropic with respect to cross-polarized probe beams. A model, based on the polarization dependent photoselection of the BR molecules qualitatively explains the photochemical bleaching process and the observed anisotropic response. The effect reported here can be used to construct a polarization sensitive BR-based bio-photoreceiver.

Original language	English (US)
Pages (from-to)	869-874
Number of pages	6
Journal	Biosensors and Bioelectronics
Volume	19
Issue number	8
DOIs	https://doi.org/10.1016/j.bios.2003.08.017
State	Published - Mar 15 2004

All Science Journal Classification (ASJC) codes

Biotechnology
Biophysics
Biomedical Engineering
Electrochemistry

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title = "Photoelectric response of polarization sensitive bacteriorhodopsin films",

abstract = "Polarization sensitivity is introduced into oriented bacteriorhodopsin (BR) films through a photochemical bleaching process, which chemically modifies the structure of the purple membrane by breaking the intrinsic symmetry of the membrane-bound BR trimers. The resulting photovoltage generated in an indium-tin oxide (ITO)/BR/ITO detector is found to be anisotropic with respect to cross-polarized probe beams. A model, based on the polarization dependent photoselection of the BR molecules qualitatively explains the photochemical bleaching process and the observed anisotropic response. The effect reported here can be used to construct a polarization sensitive BR-based bio-photoreceiver.",

author = "Qun Li and Stuart, {Jeffrey A.} and Birge, {Robert R.} and Jian Xu and Andrew Stickrath and Pallab Bhattacharya",

note = "Funding Information: The authors acknowledge discussions with G. V{\'a}r{\'o}. The work is supported by the supports of the Office of Naval Research under Grant N00014-03-1-0064, and the Army Research Office (Multi-University-Research Initiative (MURI) program) under Grant DAAD 19-99-1-0198. ",

year = "2004",

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doi = "10.1016/j.bios.2003.08.017",

language = "English (US)",

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journal = "Biosensors and Bioelectronics",

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TY - JOUR

T1 - Photoelectric response of polarization sensitive bacteriorhodopsin films

AU - Li, Qun

AU - Stuart, Jeffrey A.

AU - Birge, Robert R.

AU - Xu, Jian

AU - Stickrath, Andrew

AU - Bhattacharya, Pallab

N1 - Funding Information: The authors acknowledge discussions with G. Váró. The work is supported by the supports of the Office of Naval Research under Grant N00014-03-1-0064, and the Army Research Office (Multi-University-Research Initiative (MURI) program) under Grant DAAD 19-99-1-0198.

PY - 2004/3/15

Y1 - 2004/3/15

N2 - Polarization sensitivity is introduced into oriented bacteriorhodopsin (BR) films through a photochemical bleaching process, which chemically modifies the structure of the purple membrane by breaking the intrinsic symmetry of the membrane-bound BR trimers. The resulting photovoltage generated in an indium-tin oxide (ITO)/BR/ITO detector is found to be anisotropic with respect to cross-polarized probe beams. A model, based on the polarization dependent photoselection of the BR molecules qualitatively explains the photochemical bleaching process and the observed anisotropic response. The effect reported here can be used to construct a polarization sensitive BR-based bio-photoreceiver.

AB - Polarization sensitivity is introduced into oriented bacteriorhodopsin (BR) films through a photochemical bleaching process, which chemically modifies the structure of the purple membrane by breaking the intrinsic symmetry of the membrane-bound BR trimers. The resulting photovoltage generated in an indium-tin oxide (ITO)/BR/ITO detector is found to be anisotropic with respect to cross-polarized probe beams. A model, based on the polarization dependent photoselection of the BR molecules qualitatively explains the photochemical bleaching process and the observed anisotropic response. The effect reported here can be used to construct a polarization sensitive BR-based bio-photoreceiver.

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EP - 874

JO - Biosensors and Bioelectronics

JF - Biosensors and Bioelectronics

IS - 8

ER -

Photoelectric response of polarization sensitive bacteriorhodopsin films

Abstract

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