Description:

Title: Harvesting Fluctuations for Transport at the Nanoscale
Speaker: Sophie Marbach, Marie Curie fellow at the Courant Institute of New York University
Abstract: Fluctuations are ubiquitous in bio and artificial nanopores, and dramatically impact transport since the surface to volume ratio is exarcebated in small pores. Most of the time, fluctuations are seen as a negative feature that impedes for example signal measurements. Furthermore, fluctuations have entangled consequences, as they affect all dynamics and dynamics are not necessarily linear. And yet, biological pores are still able to achieve complex tasks, including precise and rapid selection of particles, in spite of fluctuations. To investigate the riddle of fluctuations in nanoporous transport, here we explore 2 situations where noise plays a critical role. First, we will inspect how surface fluctuations of the pore -- or structural fluctuations -- impact transport (diffusion and flow) within the pore. Second, how fluctuations in the number of particles present within the pore affect signal measurements. These results could open new avenues in artificial designs, where fluctuations could allow us to improve transport and sensing.
**Please note, this event will also be held online via Zoom at the following link: https://northwestern.zoom.us/j/94498605993 

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