Matthew Ranaghan - Photo-response of Electrostatically Deposited Bacteriorhodopsin Monolayer Films for Protein-Based Disk Recording Beyond 10 Tbit/in2.

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  Photo-response of Electrostatically Deposited Bacteriorhodopsin   Monolayer Films for Protein-Based Disk Recording Beyond 10   Tbit/in2.  Hudgins, M., Butler, J., Fernandez,   R., Gertz, F. T., Ranaghan, M. J., Birge, R.   R., Haddon, R. C., Khizroev, S. (2010) J. Nanoelectron.   Optoelectron. 5   (3): 287-289.


The absorption properties of optical protein memories, comprised of Bacteriorhodopsin (BR), were studied 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.

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