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.
Citation: Applied Physics Letters
Pub Type: Journals
magnetic particles, microfluidics, fluid transport, magnetic manipulation, micro-total analysis, bio assay, magnetophoretesis, separation techniques