Photo-response of electrostatically deposited Bacteriorhodopsin monolayer films for protein-based disk recording beyond 10 Tbit/in2

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

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)287-289
Number of pages3
JournalJournal of Nanoelectronics and Optoelectronics
Volume5
Issue number3
DOIs
StatePublished - Dec 2010
Externally publishedYes

Keywords

  • Bacteriorhodopsin
  • Fluorescence
  • Photocycle
  • Photoresponse
  • Protein memory

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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