Integration of optical protein and quantum dot films for biosensing
Document Type
Conference Proceeding
Publication Date
11-10-2008
Abstract
The unique energy transfer interaction between the optical protein bacteriorhodopsin (bR) and CdSe/ZnS 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. © 2008 IEEE.
Publication Title
2008 8th IEEE Conference on Nanotechnology, IEEE-NANO
Recommended Citation
Griep, M.,
Mallick, G.,
Lueking, D.,
Friedrich, C.,
&
Karna, S.
(2008).
Integration of optical protein and quantum dot films for biosensing.
2008 8th IEEE Conference on Nanotechnology, IEEE-NANO, 657-659.
http://doi.org/10.1109/NANO.2008.199
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/10829
