(316g) Driving Paramagnetic Colloidal Assemblies with Magnetic Fields
AIChE Annual Meeting
2014
2014 AIChE Annual Meeting
Engineering Sciences and Fundamentals
Colloidal Hydrodynamics I: Soft and Active Systems
Tuesday, November 18, 2014 - 2:00pm to 2:15pm
Controlled and directed colloidal transport is observed when placing paramagnetic colloids in an AC magnetic field. To achieve controlled swimming at the microscale, the swimmer must be able to make a sequence of deformations that are cyclic but not time reversible. Two paramagnetic bodies in a circular eccentric rotating magnetic field will move together in a directed manner. We will describe this method and show how Brownian motion enhances this propulsion.