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Issue 3, 2002
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A passive pumping method for microfluidic devices

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The surface energy present in a small drop of liquid is used to pump the liquid through a microchannel. The flow rate is determined by the volume of the drop present on the pumping port of the microchannel. A flow rate of 1.25 μL s−1 is demonstrated using 0.5 μL drops of water. Two other fluid manipulations are demonstrated using the passive pumping method: pumping liquid to a higher gravitational potential energy and creating a plug within a microchannel.

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Publication details

The article was received on 07 May 2002, accepted on 23 Jul 2002 and first published on 05 Aug 2002

Article type: Paper
DOI: 10.1039/B204381E
Lab Chip, 2002,2, 131-134

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    A passive pumping method for microfluidic devices

    G. M. Walker and D. J. Beebe, Lab Chip, 2002, 2, 131
    DOI: 10.1039/B204381E

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