Photochromic properties of chemically modified bacteriorhodopsin films

Bing Liang; Liqian Li; Meiling Li; Baofang Li; Long Jiang

doi:10.1117/12.406479

13 November 2000 Photochromic properties of chemically modified bacteriorhodopsin films

Bing Liang, Liqian Li, Meiling Li, Baofang Li, Long Jiang

Proceedings Volume 4104, Organic Photorefractives, Photoreceptors, and Nanocomposites; (2000) https://doi.org/10.1117/12.406479
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

The lifetime of M-state in the bacteriorhodopsin photocycle was remarkably prolonged in bR-gelatin film by using 1,4,7,10-tetraoxa-13- azacyclopentadecane (aza-15-crown-5) as chemical additive. Spectral and kinetic measurements were carried out at room temperature. It is observed that the M-state in the film has a long lifetime ((tau) _1/e) of 360s with bR/aza-15-crown-5 weight ratio of 1:3 under room conditions. To investigate the mechanism of aza-15-crown-5 on the photocycle of bR 15-crown-5 was used as chemical additive too. It was suggested that the strong complexing property towards H⁺ of aza-15- crown-5 played an important role in the prologation. The fitting of the M-state decay kinetics curves corresponded to a sum of three and two exponential components for bR-films using aza-15-crown-5 and 15-crown-5 as chemical additive respectively.

Citation Download Citation

Bing Liang, Liqian Li, Meiling Li, Baofang Li, and Long Jiang "Photochromic properties of chemically modified bacteriorhodopsin films", Proc. SPIE 4104, Organic Photorefractives, Photoreceptors, and Nanocomposites, (13 November 2000); https://doi.org/10.1117/12.406479

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available