Acta Optica Sinica, Volume. 28, Issue 10, 2010(2008)
Theoretical and Experimental Studies on Kinetics of Photoinduced Anisotropy of Bacteriorhodopsin
The polymeric film embedded with polar bacteriorhodopsin (BR) molecules is isotropic in macroscopy since the BR molecules are randomly distributed. Upon excitation by a linearly polarized light, selective absorption of BR molecules with respect to the polarization orientation of the excitation light makes the nonuniformly distributed orientation of BR molecules, resulting in a macroscopic anisotropy. According to the two-state model of BR photocycle, the time-dependent orientation distribution of BR molecules in B state is obtained. The kinetic equations of the photoinduced anisotropy of the BR-film are derived. The kinetic curves of the photoinduced anisotropy at different intensities of excitation light are simulated, which are consistent with experimental results.
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Han Junhe, Yao Baoli, Gao Peng, Chen Liju, Wang Yingli, Lei Ming. Theoretical and Experimental Studies on Kinetics of Photoinduced Anisotropy of Bacteriorhodopsin[J]. Acta Optica Sinica, 2008, 28(10): 2010