We present the design, fabrication, characterization, and demonstration of a new passive magnetic bead separator. The device operates in an effective state when magnetized by an external magnetic field of only 50mT, which is available from a tabletop electromagnet. We demonstrate the complete capture of 1.0μm fluorescent magnetic beads from a 7.5μL sample volume traveling at an average linear fluid velocity of 5mm∕s.
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