Integration of Optical Protein and Quantum Dot Films for Biosensing
MICHIGAN TECHNOLOGICAL UNIV HOUGHTON DEPT OF MECHANICAL ENGINEERING AND ENGINEERING MECHANICS
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The unique energy transfer interaction between the optical protein bacteriorhodopsin bR and CdSe 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 bRQD multilayer films along with the ability to control bRQD 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 bRQD 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.
- Miscellaneous Detection and Detectors
- Quantum Theory and Relativity