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Publication Citation: Manipulation of magnetic particles by patterned arrays of magnetic spin-valve traps

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Author(s): Elizabeth Mirowksi; John M. Moreland; Stephen E. Russek; Michael J. Donahue;
Title: Manipulation of magnetic particles by patterned arrays of magnetic spin-valve traps
Published: December 20, 2006
Abstract: A novel magnetic for microfluidic manipulation of magnetic particles is discussed. The particles are confined by an array of magnetic spin valves with bistable ferromagnetic "ON" and antiferromagnetic "OFF" net magnetization states. The switchable fringing fields near the spin-valve traps can be used to selectively confine or release particles for transport or sorting. Spin-valve traps may be potentially used as magnetic molecular tweezers or adapted to a low-power magnetic random access memory (MRAM) switching architecture for massively parallel particle sorting applications.
Citation: Journal of Magnetism and Magnetic Materials
Volume: 311
Pages: pp. 401 - 404
Keywords: magnetic traps;magnetic tweezers;microfluidics;single molecule;spin-valve arrays
Research Areas: Electromagnetics
PDF version: PDF Document Click here to retrieve PDF version of paper (319KB)