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Issue 4, 2012
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A simple microfluidic device for fabrication of double emulsion droplets and polymer microcapsules

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Abstract

We demonstrate that by using a syringe needle, plastic tubing, two glass capillaries and epoxy glue a microfluidic device can be fabricated straightforwardly that allows for the production of double emulsions, or in other words the generation of droplets-in-droplets. The device in essence is a serial combination of droplet generation by co-flow and a T-junction. To reduce potential issues with channel wetting, we established that an “obstructed” T-junction outperformed a conventional T-junction. We illustrate the versatility of our device through production of a range of polymer microcapsules, including ones that contain a waterborne dispersion of colour changing pigment, and microcapsules with compartmentalized ferrofluidic segments, that is capsules that contain more than one droplet of ferrofluid.

Graphical abstract: A simple microfluidic device for fabrication of double emulsion droplets and polymer microcapsules

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Publication details

The article was received on 21 Dec 2011, accepted on 30 Jan 2012 and first published on 06 Feb 2012


Article type: Paper
DOI: 10.1039/C2PY00605G
Polym. Chem., 2012,3, 1043-1047

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    A simple microfluidic device for fabrication of double emulsion droplets and polymer microcapsules

    G. Nurumbetov, N. Ballard and S. A. F. Bon, Polym. Chem., 2012, 3, 1043
    DOI: 10.1039/C2PY00605G

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