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Issue 10, 2012
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Quantitative modeling of the behaviour of microfluidic autoregulatory devices

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Abstract

We develop a theoretical model for a fluidic current source consisting of a via, a detour channel, and a push-up type micro-valve. The model accurately describes the non-linear behaviour of this type of device, which has been previously measured experimentally. We show how various structural parameters and material properties of the device influence the saturated flow rate and the minimum driving pressure required for the device to function as a current source. Conversely, the model can be used to design a fluidic current source with a desired saturated flow rate and low operational pressure. The present model can be straightforwardly applied to microfluidic circuits composed of many functional autoregulatory devices.

Graphical abstract: Quantitative modeling of the behaviour of microfluidic autoregulatory devices

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Publication details

The article was received on 04 Oct 2011, accepted on 06 Mar 2012 and first published on 04 Apr 2012


Article type: Paper
DOI: 10.1039/C2LC20956J
Citation: Lab Chip, 2012,12, 1890-1896
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    Quantitative modeling of the behaviour of microfluidic autoregulatory devices

    H. Chang, W. Ye and E. P. Kartalov, Lab Chip, 2012, 12, 1890
    DOI: 10.1039/C2LC20956J

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