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Issue 20, 2014
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A soft microchannel decreases polydispersity of droplet generation

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Abstract

We study the effect of softness of the microchannel on the process of droplet generation in two-phase flows in a T-junction microchannel. One side of the microchannel has a flexible thin PDMS layer, which vibrates naturally while droplets are generated; the deformation frequency coincides with the frequency of droplet formation. Furthermore, we compare the polydispersity of water-in-oil droplets formed with a microchannel with one soft wall with those formed in a conventional rigid microchannel. We show that deformation of the soft wall reduces the polydispersity in the droplet size.

Graphical abstract: A soft microchannel decreases polydispersity of droplet generation

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Publication details

The article was received on 24 Jul 2014, accepted on 05 Aug 2014 and first published on 21 Aug 2014


Article type: Paper
DOI: 10.1039/C4LC00871E
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Citation: Lab Chip, 2014,14, 4029-4034
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    A soft microchannel decreases polydispersity of droplet generation

    Y. Pang, H. Kim, Z. Liu and H. A. Stone, Lab Chip, 2014, 14, 4029
    DOI: 10.1039/C4LC00871E

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