Issue 20, 2014

A soft microchannel decreases polydispersity of droplet generation

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

Supplementary files

Article information

Article type
Paper
Submitted
24 Jul 2014
Accepted
05 Aug 2014
First published
21 Aug 2014

Lab Chip, 2014,14, 4029-4034

Author version available

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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