Multifunctional Nanostructures for Electrochemistry of Single Molecules to Single Bacteria

Description:
Electrochemical phenomena in nanostructures exhibit a range of characteristics not observed in larger structures. These include (1) novel ionic screening, permselectivity, and concentration polarization effects, (2) coupling electron transfer to fluorigenic processes in nanophotonic architectures, and (3) direct spectroelectrochemistry of single bacterial cells. Novel electrokinetic transport phenomena arise in nanoarchitectures, leading to enhanced electrochemical currents in the absence of supporting electrolyte, strong current amplification from nano-confined electrode pairs, and enhanced voltammetric sensitivity and selectivity. New experimental possibilities are also opened by the bimodal nanophotonic-electrochemical zero-mode waveguide, a powerful new approach for the study of the redox behavior of single ions/molecules, nanoparticles/bubbles, and even single bacterial cells.

Speaker: Paul Bohn - University of Notre Dame
Department of Chemistry and Biochemistry, Department of Chemical and Biomolecular Engineering, University of Notre Dame, and Berthiaume Institute for Precision Health, University of Notre Dame