Photo-Response of Electrostatically Deposited Bacteriorhodopsin Monolayer Films for Protein-Based Disk Recording Beyond 10 Tbit/in²

Authors: Hudgins, Matthew; Butler, John; Fernandez, Robert; Gertz, Frederick T.; Ranaghan, Matthew J.; Birge, Robert; Haddon, Robert C.; Khizroev, Sakhrat

Source: Journal of Nanoelectronics and Optoelectronics, Volume 5, Number 3, December 2010 , pp. 287-289(3)

Publisher: American Scientific Publishers

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Abstract:

The absorption properties of optical protein memories, comprised of Bacteriorhodopsin (BR) monolayer films, were studied for the first time to better understand the underlying read/write processes. We demonstrate that 755 nm light provides the greatest difference between the bR and Q photostates in 2D BR films. This implicates 755 nm as an optimal wavelength for probing the state of monolayer BR. A Cary 5000 spectrometer was used to observe state changes via absorption measurements following LED irradiation of BR coated samples.

Keywords: BACTERIORHODOPSIN; PROTEIN MEMORY; FLUORESCENCE; PHOTOCYCLE; PHOTORESPONSE

Document Type: Research article

DOI: http://dx.doi.org/10.1166/jno.2010.1111

Publication date: 2010-12-01

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Journal of Nanoelectronics and Optoelectronics (JNO) is an international and cross-disciplinary peer reviewed journal to consolidate emerging experimental and theoretical research activities in the areas of nanoscale electronic and optoelectronic materials and devices into a single and unique reference source. JNO aims to facilitate the dissemination of interdisciplinary research results in the inter-related and converging fields of nanoelectronics and optoelectronics.
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