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.
Bibliographical noteCopyright (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.
Smistrup, K., Lund-Olesen, T., Hansen, M. F., & Tang, P. T. (2006). Microfluidic magnetic separator using an array of soft magnetic elements. Journal of Applied Physics, 99(8), 08P102. https://doi.org/10.1063/1.2159418