NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Manipulation of magnetic particles by patterned arrays of magnetic spin-valve traps

Published

Author(s)

Elizabeth Mirowksi, John M. Moreland, Stephen E. Russek, Michael J. Donahue

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
Pub Type
Journals

Download Paper

Local Download

Keywords

magnetic traps, magnetic tweezers, microfluidics, single molecule, spin-valve arrays
Electromagnetics

Citation

Mirowksi, E. , Moreland, J. , Russek, S. and Donahue, M. (2006), Manipulation of magnetic particles by patterned arrays of magnetic spin-valve traps, Journal of Magnetism and Magnetic Materials, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32337 (Accessed October 10, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created December 19, 2006, Updated October 12, 2021
Was this page helpful?