Driving to Contacts: Single Molecular Electronics and Mechanics

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Venue:GC 280

Refreshments will be served at 1:15 PM

Abstract

Single molecule study, where science and engineering met, applies the tools and measurement techniques of nanoscale physics and chemistry to generate remarkable new insights into how physical, chemical, and biological systems function. It permits direct observation of molecular behavior that can be obscured by ensemble averaging and enables the study of important problems ranging from the fundamental physics of electronic transport in single molecule junctions and biophysics of single molecule interactions, such as the energetics and non-equilibrium transport mechanisms in single molecule junctions and the energy landscape of biomolecular reactions, associated lifetimes, and free energy, to the study and design of single molecules as devices-molecular wires, rectifiers and transistors and high‐affinity, anti‐cancer drugs. I will describe our pioneered highly integrated SPM-based approaches to (1) simultaneously fabricate, control, modulate, and monitor the electronic and mechanical properties of molecular junction devices at the single-molecule level. (2) Probe the biophysical mechanism of single‐molecule interactions, including the binding affinity and specificity. Our recent research examples will be used in the discussions.

Biography

Bingqian Xu is an Associate Professor of College Engineering and holds Adjunct Professor of Chemistry and Physics in The University of Georgia (UGA). He received his Ph. D. in Materials Science and Engineering at Arizona State University (ASU) in 2004 and worked as a Faculty Research Associate in ASU until he came to UGA in 2006. His BS degree in Physics and Geography was offered by Northwestern University, Xian, China. He taught Quantum Physics in China until he came to the US in 2000 and cofounded a company orthokeratology. Presently, his main research interests are in molecular nanoelectronics, nanobiotechnology and single molecule techniques and pioneers in SPM-based single molecule study techniques. He published over 70 research papers in journals of Science, PNAS, JACS, Nano letters, Small, Angew Chem., etc. He is a member of American Physical Society, American Chemical Society and Materials Research Society.

The event is free and open to the public. Undergraduate students are welcome!