Controlled transport of magnetic particles using soft magnetic patterns

Conroy, Richard S.; Zabow, Gary; Moreland, John; Koretsky, Alan P.
November 2008
Applied Physics Letters;11/17/2008, Vol. 93 Issue 20, p203901
Academic Journal
Inspired by magnetic bubble memory technology, we demonstrate the temporal and spatial manipulation of superparamagnetic beads guided by soft magnetic patterns in a rotating magnetic field. Soft magnetic structures allow complex and repetitive tasks to be performed. As a demonstration, we show cyclic capture and release of antibodies from different microfluidic streams.


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