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Sensors 2005, 5(4), 258-265; doi:10.3390/s5040258
Article

Bio-nanocomposite Photoelectrode Composed of the BacteriaPhotosynthetic Reaction Center Entrapped on a NanocrystallineTiO2 Matrix

1, 2, 1, 2, 1 and 1,*
1 Department of Chemistry, Fudan University, Shanghai 200433, P. R. China 2 Shanghai Institute of Plant Physiology & Ecology, Shanghai Institute for Biological Sciences, Chinese Academy of Science, Shanghai 200032, P. R. China
* Author to whom correspondence should be addressed.
Received: 28 May 2004 / Accepted: 1 November 2004 / Published: 4 May 2005
(This article belongs to the Special Issue Papers presented at I3S2004, Nanjing)
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Abstract

A new kind of bio-nanocomposite photoelectrode was fabricated through directimmobilization of the bacterial photosynthetic reaction center (RC) proteins on ananocrystalline TiO2 matrix prepared by anodic electrodeposition. The near-infrared (NIR)-visible absorption and fluorescence emission spectra displayed that structure and activity ofthe RC remained unaltered on the nano-TiO2 film surface. High efficient light-harvesting ofthe NIR light energy by RC contributed to the distinct enhancement of the photoelectricconversion on such nanoporous matrix, which would provide a new strategy to developversatile biomimic energy convertors or photoelectric sensors.
Keywords: Photosynthetic reaction center; nanocrystalline TiO2; photoelectric; lightharvesting Photosynthetic reaction center; nanocrystalline TiO2; photoelectric; lightharvesting
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Lu, Y.; Liu, Y.; Xu, J.; Xu, C.; Liu, B.; Kong, J. Bio-nanocomposite Photoelectrode Composed of the BacteriaPhotosynthetic Reaction Center Entrapped on a NanocrystallineTiO2 Matrix. Sensors 2005, 5, 258-265.

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