473187 Probing Dynamics of a Magnetic Colloidal Chain Confined in a Spherical Cavity

Monday, November 14, 2016
Market Street (Parc 55 San Francisco)
Ziyi Zhu and Sibani Lisa Biswal, Chemical and Biomolecular Engineering, Rice University, Houston, TX

Behaviors and conformational properties of semi-flexible macromolecular chains can provide insight of understanding some fundamental polymer dynamics such as chain entanglement or the cellular processes such as DNA replication or viral transfection. We conduct a study of such confined system via magnetically driven colloidal chains under confinement. We present a bead-spring model to describe the confinement dynamics inside a spherical cavity using coarse-grained Brownian Dynamics simulation. Radial contraction is employed as the confining procedure, and a possible rotating magnetic field will be introduced to actuate dynamics in the system. We aim to study the conformational properties of confined semiflexible colloidal chain with respect to the contraction rate in both weak and strong confinement regimes, and discuss the change of dynamics along the chain when a short-ranged wall interaction is present.

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See more of this Session: Poster Session: Fluid Mechanics (Area 1J)
See more of this Group/Topical: Engineering Sciences and Fundamentals