Integration of Optical Protein and Quantum Dot Films for Biosensing

Abstract

The unique energy transfer interaction between the optical protein bacteriorhodopsin (bR) and Cd/Se quantum dots (QDs) provides a potential modulation mechanism for bio-nano electronic application. We have utilized ionic self-assembled monolayer (I-SAM) techniques to create a novel alternating monolayer system of QDs and bR on a conductive ITO substrate. Results demonstrate the ability to efficiently create bR/QD multilayer films along with the ability to control bR/QD spacing on the nanometer scale. I-SAM films of this nature demonstrate a sharp decrease in QD emission when deposited in close proximity to bR, suggesting possible fluorescence resonance energy transfer (FRET) effects in a bR/QD nanoscale system. The ability to modulate the QD photonic output based on proximity to bR in the I-SAM films could provide a direct method to modulate the electrical output for bio-nano sensing applications.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2008
Accession Number
ADA496244

Entities

People

  • Craig Friedrich
  • Donald Lueking
  • Govind Mallick
  • Mark H Griep
  • Shashi P Karna

Organizations

  • Michigan Technological University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Absorption
  • Absorption Spectra
  • Assembly
  • Chemistry
  • Emission
  • Emission Spectra
  • Energy Transfer
  • Engineering
  • Films
  • Materials
  • Monomolecular Films
  • Nanomaterials
  • Nanotechnology
  • Optical Properties
  • Quantum Dots
  • Self Assembled Monolayers
  • Spectra

Readers

  • Molecular Photonics/Laser Physics
  • Nanoscale Plasmonic Nanotechnology
  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene
  • Quantum Computing
  • Space