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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 which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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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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