Bio-nanocomposite Photoelectrode Composed of the Bacteria Photosynthetic Reaction Center Entrapped on a Nanocrystalline TiO2 Matrix

Sensors

Yidong Lu²  Yuan Liu¹  Jingjing Xu²  Chunhe Xu¹  Baohong Liu² 

[1] Shanghai Institute of Plant Physiology & Ecology, Shanghai Institute for Biological Sciences, Chinese Academy of Science, Shanghai 200032, P. R. China;Department of Chemistry, Fudan University, Shanghai 200433, P. R. China

关键词: Photosynthetic reaction center;    nanocrystalline TiO₂;    photoelectric;    light-harvesting;   

DOI  :  10.3390/s5040258

来源: mdpi

【 摘 要 】

A new kind of bio-nanocomposite photoelectrode was fabricated through direct immobilization of the bacterial photosynthetic reaction center (RC) proteins on a nanocrystalline TiO₂ matrix prepared by anodic electrodeposition. The near-infrared (NIR)-visible absorption and fluorescence emission spectra displayed that structure and activity of the RC remained unaltered on the nano-TiO₂ film surface. High efficient light-harvesting of the NIR light energy by RC contributed to the distinct enhancement of the photoelectric conversion on such nanoporous matrix, which would provide a new strategy to develop versatile biomimic energy convertors or photoelectric sensors.

【 授权许可】

Unknown   
© 2005 by MDPI (http://www.mdpi.org).