Department of Physics Colloquium

Guest speaker: Derek Stein, Brown University
Thursday, 25 October 2018 - 2:45 pm to 3:45 pm
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Title: Wet, Wiggly, Weird, and Wonderful – New Discoveries in Nanofluidics Abstract: About 25 years ago, pioneers began to borrow fabrication techniques from the semiconductor industry to make tiny fluidic circuits on chips. That field of research became known as microfluidics, because the chips featured tubes that were smaller than a millimeter. Today it’s possible to make tubes that are nanometers in size, and research in the nanofluidics field is uncovering a wealth of curious phenomena related to the interplay of thermal fluctuations, electrostatics, fluid dynamics, and polymer physics. In this talk I’ll describe and explain some counterintuitive recent discoveries: electrical currents driven by viscosity, forces that can be measured with a video camera, DNA motion driven by salt, and DNA conformations controlled by entropy. Refreshments will be served at 2:15 p.m. (BEFORE the seminar) in room ARC 233