Applied Math And Analysis Seminar
Monday, September 14, 2009, 4:30pm, 119 Physics
Yuan-Nan Young
Dynamics of elastic semiflexible filaments in Stokes flow

Abstract:

Bio-polymers such as actin filaments or microtubules are important in many cell functions. Through interactions with molecular motors, the chemical energy of ATP (adenosine triphosphate) hydrolysis is converted to mechanical work and the biopolymers can move or transport materials in the cells. In vitro motility assays have been used to characterize the dynamics of the biopolymers and the molecular motors that drive the motions. These results have been utilized for nano-cargo transport in cellular size synthetic devices. In this talk we present a continuum slender-body model for such bio-polymers immersed in viscous fluid. We will show that this model gives reasonable agreement with the experiment observation, and also prediction to novel dynamics of these bio-polymers in different forcing landscape. This work is in collaboration with Michael Shelley at Courant Institute, New York University.

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