Microfluidic magnetic separator using an array of soft magnetic elements

Kristian Smistrup, Torsten Lund-Olesen, Mikkel Fougt Hansen, Peter Torben Tang

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    Abstract

    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 50 mT, which is available from a tabletop electromagnet. We demonstrate the complete capture of 1.0 mu m fluorescent magnetic beads from a 7.5 mu L sample volume traveling at an average linear fluid velocity of 5 mm/s.
    Original languageEnglish
    JournalJournal of Applied Physics
    Volume99
    Issue number8
    Pages (from-to)08P102
    ISSN0021-8979
    DOIs
    Publication statusPublished - 2006

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    Copyright (2006) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

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