TITLE

Microelectromagnets for the control of magnetic nanoparticles

AUTHOR(S)
Lee, C. S.; Lee, H.; Westervelt, R. M.
PUB. DATE
November 2001
SOURCE
Applied Physics Letters;11/12/2001, Vol. 79 Issue 20, p3308
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A microelectromagnet matrix and a ring trap that position and control magnetic nanoparticles are demonstrated. They consist of multiple layers of lithographically defined Au wires separated by transparent, insulating polyimide layers on sapphire substrates. Magnetic field patterns produced by these devices allow microscopically precise control and manipulation of magnetic nanoparticles. A microelectromagnet matrix produces single or multiple peaks in the magnetic field magnitude, which trap, move, and rotate magnetic nanoparticles, as well as electromagnetic fields to probe and detect particles. Microelectromagnets are new tools with which to study and manipulate nanoparticles and biological entities. © 2001 American Institute of Physics.
ACCESSION #
5549494

 

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