title: Photoelectric Frequency Response in a Bioinspired Bacteriorhodopsin/Alumina Nanochannel Hybrid Nanosystem.
abstract: Inspired by the microstructure of rod cell, a bacteriorhodopsin/alumina nanochannel hybrid system is demonstrated that converts flickering light impulses below 130 Hz into distinguishable patterns of photocurrent to mimic frequency-responsive characteristic of mammalian retina in vitro. An optimal response frequency is identified with unique dependency on bacteriorhodopsin thickness rather than the proton concentration gradient and pore size of the alumina nanochannel.
authors.affiliation: Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Space and Environment, Beihang University, Beijing, 100191, P. R. China.
authors.forename: Shanfu
authors.initials: S
authors.lastname: Lu
authors.affiliation: Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Space and Environment, Beihang University, Beijing, 100191, P. R. China.
authors.forename: Zhibin
authors.initials: Z
authors.lastname: Guo
authors.affiliation: Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Space and Environment, Beihang University, Beijing, 100191, P. R. China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Xiang
authors.affiliation: Laboratory of Bioinspired Smart Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
authors.forename: Lei
authors.initials: L
authors.lastname: Jiang
keywords: bacteriorhodopsin; frequency response; photoelectric conversion; proton pumps