Kinetics of picosecond laser pulse induced charge separation and proton transfer in bacteriorhodopsin

CORC > 西安光学精密机械研究所 > 中国科学院西安光学精密机械研究所 > 瞬态光学技术国家重点实验室

	Kinetics of picosecond laser pulse induced charge separation and proton transfer in bacteriorhodopsin
	Yao, BL ; Xu, DL ; Hou, X ; Hu, KS ; Wang, AJ
刊名	journal of biomedical optics
	2003
卷号	8 期号:1 页码:48-52
关键词	bacteriorhodopsin photodetectors photoelectric kinetics
ISSN号	1083-3668
通讯作者	yao baoli
英文摘要	bacteriorhodopsin (br) films oriented by an electrophoretic method are deposited on a transparent conductive ito glass. a counterelectrode of copper and gelose gel is used to compose a sandwich-type photodetector with the structure of ito/br film/gelose gel/cu. a single 30-ps laser pulse and a mode-locked pulse train are respectively used to excite the br photodetector. the ultrafast failing edge and the bipolar response signal are measured by the digital oscilloscope under seven different time ranges. marquardt nonlinear least squares fitting is used to fit all the experimental data and a good fitting equation is found to describe the kinetic process of the photoelectric signal. data fitting resolves six exponential components that can be assigned to a seven-step br photocycle model: br-->k-->kl-->l-->m-->n-->o-->br. comparing tests of the br photodetector with a 100-ps si pin photodiode demonstrates that this type of bir photocletector has at least 100-ps response time and can also serve as a fast photoelectric switch. (c) 2003 society of photo-optical instrumentation engineers.
学科主题	光学
WOS标题词	science & technology ; life sciences & biomedicine ; physical sciences
类目[WOS]	biochemical research methods ; optics ; radiology, nuclear medicine & medical imaging
研究领域[WOS]	biochemistry & molecular biology ; optics ; radiology, nuclear medicine & medical imaging
关键词[WOS]	memories ; protein
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000180755400006
公开日期	2010-01-12
内容类型	期刊论文
源URL	[http://ir.opt.ac.cn/handle/181661/7276]
专题	西安光学精密机械研究所_瞬态光学技术国家重点实验室
作者单位	1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt Technol, Xian 710068, Peoples R China 2.Chinese Acad Sci, Inst Biophys, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Yao, BL,Xu, DL,Hou, X,et al. Kinetics of picosecond laser pulse induced charge separation and proton transfer in bacteriorhodopsin[J]. journal of biomedical optics,2003,8(1):48-52.
APA	Yao, BL,Xu, DL,Hou, X,Hu, KS,&Wang, AJ.(2003).Kinetics of picosecond laser pulse induced charge separation and proton transfer in bacteriorhodopsin.journal of biomedical optics,8(1),48-52.
MLA	Yao, BL,et al."Kinetics of picosecond laser pulse induced charge separation and proton transfer in bacteriorhodopsin".journal of biomedical optics 8.1(2003):48-52.