University of Illinois at Chicago
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Interfacing Cytogenic Electrons with Conductive Nanomaterials: Energetics and Electron-Transport

thesis
posted on 2022-08-01, 00:00 authored by Sheldon Cotts
A synergistic, nanoscale electrical-interface with the membranes of exoelectrogenic microbes will have transformative impact on biological cell based electronic-devices. Here, it is reported that a conformal graphenic interface on biocatalytic Geobacter sulfurreducens membrane results in quantum-capacitance induced n-doping in reduced graphene oxide (rGO) that further enhances electron shuttling from the membrane to improve electron harvesting from the electrogenic organism. Next, cytogenic electrons from a bacterial source have been limited in their application to energy devices. By interfacing the electrogenic bacteria with graphene nano-dots (GNDs) we designed a route for self-induced phononic enhancement by selectively directing electrons to targeted molecules. Finally, the combination of graphene’s interfacial and phononic properties has led to the realization of a clean signal transducer. Leveraging graphene’s biocompatibility, electronic sensitivity, and known phononic characterization facilitates the study of the electrokinectics of the nano-bio interface for single cell resolution of electrogenic bacteria.

History

Advisor

Berry, Vikas

Chair

Berry, Vikas

Department

Chemical Engineering

Degree Grantor

University of Illinois at Chicago

Degree Level

  • Doctoral

Degree name

PhD, Doctor of Philosophy

Committee Member

Cheng, Gang Liu, Ying Singh, Meenesh Xu, Jie

Submitted date

August 2022

Thesis type

application/pdf

Language

  • en

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