Multi-exponentially Photoelectric Response of Bacteriorhodopsin
-
Abstract
A thin oriented bacteriorhodopsin (bR) film is deposited on a stainless steel slide by use of the electrophoretic sedimentation method. A junction is made with electrolyte gels having a counterelectrode to construct a bR-based photoelectric detector. The photoelectric response signal to a 10ns laser pulse is measured. A theory on the photoelectric kinetics of bR is developed based on the concept of the charge displacement current and the bR photocycle rate equations. Comparison between the theoretical and experimental results proves that the bR photoelectric response to a short laser pulse is a multi-exponential process. The decay time constants and amplitudes of each exponential component are obtained by data fitting.
-
References
-
Related Articles
[1] Man Xing, Jun Wang, Xi Zhao, Shushan Zhou. The Role of Multi-Electron and Multi-Orbital Effects in High-Order Harmonic Generation of Benzonitrile Molecules [J]. Chin. Phys. Lett., 2025, 42(4): 043201. doi: 10.1088/0256-307X/42/4/043201 [2] YANG Zhen-Jun, MA Xue-Kai, ZHENG Yi-Zhou, GAO Xing-Hui, LU Da-Quan, HU Wei. Dipole Solitons in Nonlinear Media with an Exponential-Decay Nonlocal Response [J]. Chin. Phys. Lett., 2011, 28(7): 074213. doi: 10.1088/0256-307X/28/7/074213 [3] XING Jie, WANG Xu, ZHAO Kun, LI Jie, JIN Kui-Juan, HE Meng, ZHENG Dong-Ning, LÜ Hui-Bin. Ultraviolet Photoelectric Effect in ZrO2 Single Crystals [J]. Chin. Phys. Lett., 2007, 24(2): 530-531. [4] ZHOU Xia, ZHENG Hou-Zhi. A New Type of Photoelectric Response in a Double Barrier Structure with a Wide Quantum Well [J]. Chin. Phys. Lett., 2005, 22(5): 1222-1224. [5] WANG Ying-Li, YAO Bao-Li, MENKE Neimule, ZHENG Yuan, LEI Ming, CHEN Guo-Fu. Optical Image Contrast Reversal Using Bacteriorhodopsin Films [J]. Chin. Phys. Lett., 2005, 22(5): 1121-1123. [6] GUO Zong-Xia, CHEN Gui-Ying, ZHANG Chun-Ping, TIAN Jian-Guo, Q. Wang Song, SHEN Bin, FU Guang-Hua. Dynamic Behaviour of Self-Diffraction in Bacteriorhodopsin Film [J]. Chin. Phys. Lett., 2004, 21(12): 2418-2421. [7] HUANG Yu-Hua, ZHAO You-Yuan, OU-YANG Xiao-Ping, LI Fu-Ming, DING Jian-Dong, LI Qing-Guo. A Model for Light-Driven Proton Pump and Transfer in Bacteriorhodopsin [J]. Chin. Phys. Lett., 2003, 20(6): 959-961. [8] HU Kun-Sheng, WANG Guang-Yu, HE Jin-An. Interactions Exist in Bacteriorhodopsin? [J]. Chin. Phys. Lett., 2001, 18(2): 298-300. [9] HUANG Yu-Hua, ZHAO You-Yuan, ZHANG Zhong-Bin, OU-YANG Xiao-Ping, GONG Qin-Gan, CHEN Ling-Bing, LI Fu-Ming, LIU Jian, DING Jian-Dong, LI Qing-Guo. Light-Induced Charge Separation and Transfer in Bacteriorhodopsin [J]. Chin. Phys. Lett., 2000, 17(4): 301-303. [10] MIAO Guoqing, WANG Benren, WEI Rongjue. MULTI-MODE AND CHAOTIC OSCILLATIONS IN A NONLINEAR SYSTEM OF ACOUSTIC HYBRID WITH SINGLE PEAK FREQUENCY RESPONSE [J]. Chin. Phys. Lett., 1987, 4(10): 457-460.
DownLoad: