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Nature-Inspired Microfluidic Manipulation Using Magnetic Actuators

Published online by Cambridge University Press:  01 February 2011

S. N. Khaderi ,
D. Ioan ,
J. M. J. den Toonder  and
P. R. Onck
S. N. Khaderi
Affiliation:
s.n.khaderi@rug.nl, University of Groningen, Physics and Applied Physics, Micromechanics of Materials,, Nijenborgh 4, Groningen, 9747AG, Netherlands
D. Ioan
Affiliation:
daniel@lmn.pub.ro, Universitatea Politehnica din Bucuresti, Bucharest, N/A, Romania
J. M. J. den Toonder
Affiliation:
jaap.den.toonder@philips.com, Philips Research, Eindhoven, N/A, Netherlands
P. R. Onck
Affiliation:
p.r.onck@rug.nl, University of Groningen, Physics and Applied Physics, Micromechanics of Materials, Nijenborgh 4, Groningen, 9747 AG, Netherlands
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Abstract

Magnetically actuated micro-actuators are proposed to propel and manipulate fluid in micro-channels. As the fluid flows at low Reynolds number in such systems, the actuator should move in an asymmetric manner. The proposed actuators are polymer films with embedded magnetic particles, which are actuated by an external magnetic field. Based on the nature of the particles, the films can be either ferromagnetic or super-paramagnetic. We have identified four configurations in which the actuator exhibits an asymmetric motion.

Keywords

microelectro-mechanical (MEMS)thin filmmagnetic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1052: Symposium DD – Microelectromechanical Systems–Materials and Devices , 2007 , 1052-DD08-06
Copyright
Copyright © Materials Research Society 2008

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References

1 Purcell, E. M., Life at low Reynolds number, American Journal of Physics 45, 3-11 (1977).Google Scholar
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3 Gray, J., The Mechanism of Ciliary Movement, Proceedings of The Royal Society of London B 93, 104–121 (1922).Google Scholar