TITLE

Magnetic nanowire-enhanced optomagnetic tweezers

AUTHOR(S)
Mehta, Karan K.; Ting-Hsiang Wu; Chiou, Eric P. Y.
PUB. DATE
December 2008
SOURCE
Applied Physics Letters;12/22/2008, Vol. 93 Issue 25, p254102
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report an optomagnetic tweezers technique that utilizes the highly localized magnetic field gradients induced near the tip of a magnetic nanowire to provide strong trapping forces on magnetic nanoparticles with high spatial resolution. Integral to our approach is a method to trap, translate, and rotate a single magnetic nanowire in three dimensions. Our simulation predicts that forces in the range of 100 pN can be generated on 200 nm magnetic particles within 0.2 μm from a 200 nm diameter nickel nanowire. Such forces are relevant in many biological processes, suggesting that this approach will be of value in biophysical studies.
ACCESSION #
36197988

 

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