Multi-functional protein-QD hybrid substrates for photovoltaics and real-time biosensing
Document Type
Conference Proceeding
Publication Date
12-1-2011
Abstract
The unique energy transfer interaction between the optical Utilizing the direct energy transfer mechanism existing between semiconductor quantum dots and the hydrogen ion protein pump bacteriorhodopsin, a multi-functional bioelectronics platform is demonstrated. Fluorescence resonance energy transfer coupled QD-bR systems have been proven in both aqueous and dried film states, allowing for the vast QD optical absorbance range to directly contribute energy to the bR proton pumping sequence. A nanoscale deposition technique was employed to construct hybrid QD-bR electrodes capable of harnessing the FRET phenomena and enhancing the bR electrical output by nearly 300%. A biosensing prototype system was created where the target molecule disrupts the QD-bR FRET relationship and is signaled by an altered bR electrical output. With an integrated TiO 2 electron generating substrate, the QD-bR hybrid functions as a sensitizer in a thin film bio solar cell design, which will be presented in more detail at the conference and in the full paper. © 2011 IEEE.
Publication Title
Proceedings of the IEEE Conference on Nanotechnology
Recommended Citation
Griep, M.,
Martin, J.,
Rodriguez, V.,
Winder, E.,
Lueking, D.,
MacKay, R.,
Friedrich, C.,
&
Karna, S.
(2011).
Multi-functional protein-QD hybrid substrates for photovoltaics and real-time biosensing.
Proceedings of the IEEE Conference on Nanotechnology, 233-236.
http://doi.org/10.1109/NANO.2011.6144575
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/10832