New tools for using single-molecule spectroscopy to elucidate biophysical behavior

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• Professor Randall Goldsmith, University of Wisconsin Madison
• Wednesday 16 October 2019, 11:00-12:00
• Department of Chemistry, Todd Hamied Room.

If you have a question about this talk, please contact Dr Georg Krainer.

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Single-molecule measurements are a powerful tool for unraveling complex phenomena because unsynchronized dynamics can be directly monitored and heterogeneous properties directly revealed. I will show how new methods allow the use of single-molecule measurements in increasingly challenging environments and enable new insights. In the first section, I will describe the operation of a microfluidic trap that is capable of cancelling Brownian motion, allowing prolonged investigation of solution-phase species, as well as application to look at an intrinsically disordered protein, Tau, at the center of the etiology of Alzheimer’s disease. In the second section, I will describe how nanophotonic devices can enable single-molecule measurements at record high concentration, as well as an application to understanding regulatory mechanisms in ion channels. In the third section, I will describe a new and exceptionally fast idealization algorithm for high throughput optical single-molecule experiments, and application to examination of ion channels.

This talk is part of the Biophysical Seminar series.

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