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Issue 1, 2009
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Incorporation of prefabricated screw, pneumatic, and solenoid valves into microfluidic devices

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Abstract

This paper describes a method for prefabricating screw, pneumatic, and solenoid valves and embedding them in microfluidic devices. This method of prefabrication and embedding is simple, requires no advanced fabrication, and is compatible with soft lithography. Because prefabrication allows many identical valves to be made at one time, the performance across different valves made in the same manner is reproducible. In addition, the performance of a single valve is reproducible over many cycles of opening and closing: an embedded solenoid valve opened and closed a microfluidic channel more than 100,000 times with no apparent deterioration in its function. It was possible to combine all three types of prefabricated valves in a single microfluidic device to control chemical gradients in a microfluidic channel temporally and spatially.

Graphical abstract: Incorporation of prefabricated screw, pneumatic, and solenoid valves into microfluidic devices

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Publication details

The article was received on 09 Jun 2008, accepted on 02 Sep 2008 and first published on 21 Oct 2008


Article type: Paper
DOI: 10.1039/B809673B
Citation: Lab Chip, 2009,9, 79-86

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    Incorporation of prefabricated screw, pneumatic, and solenoid valves into microfluidic devices

    S. Elizabeth Hulme, S. S. Shevkoplyas and G. M. Whitesides, Lab Chip, 2009, 9, 79
    DOI: 10.1039/B809673B

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