High radial acceleration in microvortices

J. Patrick Shelby, David S.W. Lim, Jason S. Kuo and Daniel T. Chiu ()
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J. Patrick Shelby: University of Washington
David S.W. Lim: University of Washington
Jason S. Kuo: University of Washington
Daniel T. Chiu: University of Washington

Nature, 2003, vol. 425, issue 6953, 38-38

Abstract: Abstract Microfluidic systems can conveniently be used for rapid analysis of biological samples1,2,3,4,5. Here we describe a single re-circulating flow, or microvortex, that can generate a maximum fluid rotational velocity of up to 12 m s−1 and a corresponding radial acceleration in excess of 106g. Such microvortices may be exploited in centrifugal microdevices to investigate the effects of high radial acceleration on biological and chemical processes.

Date: 2003
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DOI: 10.1038/425038a

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