title: Photoelectric performance of bacteria photosynthetic proteins entrapped on tailored mesoporous WO3-TiO2 films.
abstract: Novel three-dimensional wormlike mesoporous WO(3)-TiO(2) films with tailored pore size (approximately 7.1 nm) were applied to prepare the bio-photoelectrodes (Bio-PEs) through direct entrapping the bacteria photosynthetic reaction center (RC) proteins. These mesoporous WO(3)-TiO(2) films exhibited unique characteristics in the specific loading of RC with high activity retained. Moreover, well-matched energy levels of WO(3)-TiO(2) and RC contributed to the photoelectric performance, especially in the red to near-infrared (NIR) region, of the derived Bio-PEs. Such strategy of manipulating the Bio-PEs based on well-designed mesoporous metal oxides and RC provides an alternative system to probe the photoinduced multiple-pathway electron transfer of photosensitive chromophores, which may open a new perspective to develop versatile bio-photoelectric devices.
authors.affiliation: Chemistry Department, Fudan University, Shanghai 200433, China.
authors.forename: Yidong
authors.initials: Y
authors.lastname: Lu
authors.forename: Minjia
authors.initials: M
authors.lastname: Yuan
authors.forename: Yuan
authors.initials: Y
authors.lastname: Liu
authors.forename: Bo
authors.initials: B
authors.lastname: Tu
authors.forename: Chunhe
authors.initials: C
authors.lastname: Xu
authors.forename: Baohong
authors.initials: B
authors.lastname: Liu
authors.forename: Dongyuan
authors.initials: D
authors.lastname: Zhao
authors.forename: Jilie
authors.initials: J
authors.lastname: Kong
mesh_terms: D000327:Adsorption; D001426:Bacterial Proteins / Q000737:chemistry*; D004563:Electrochemistry; D004566:Electrodes; D004579:Electron Transport; D004581:Electronics / Q000295:instrumentation / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D009584:Nitrogen / Q000737:chemistry; D010316:Particle Size; D010777:Photochemistry; D045322:Photosynthetic Reaction Center Complex Proteins / Q000737:chemistry*; D016062:Porosity; D019265:Spectroscopy, Near-Infrared; D013499:Surface Properties; D013997:Time Factors; D014025:Titanium / Q000737:chemistry*; D017973:Tungsten Compounds / Q000737:chemistry*
chemical_list: D001426:Bacterial Proteins; D045322:Photosynthetic Reaction Center Complex Proteins; D017973:Tungsten Compounds; C009495:titanium dioxide; D014025:Titanium; D009584:Nitrogen