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Issue 18, 2016
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Microfluidic production of multiple emulsions and functional microcapsules

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Abstract

Recent advances in microfluidics have enabled the controlled production of multiple-emulsion drops with onion-like topology. The multiple-emulsion drops possess an intrinsic core–shell geometry, which makes them useful as templates to create microcapsules with a solid membrane. High flexibility in the selection of materials and hierarchical order, achieved by microfluidic technologies, has provided versatility in the membrane properties and microcapsule functions. The microcapsules are now designed not just for storage and release of encapsulants but for sensing microenvironments, developing structural colours, and many other uses. This article reviews the current state of the art in the microfluidic-based production of multiple-emulsion drops and functional microcapsules. The three main sections of this paper discuss distinct microfluidic techniques developed for the generation of multiple emulsions, four representative methods used for solid membrane formation, and various applications of functional microcapsules. Finally, we outline the current limitations and future perspectives of microfluidics and microcapsules.

Graphical abstract: Microfluidic production of multiple emulsions and functional microcapsules

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Publication details

The article was received on 24 Jun 2016, accepted on 25 Jul 2016 and first published on 25 Jul 2016


Article type: Critical Review
DOI: 10.1039/C6LC00809G
Citation: Lab Chip, 2016,16, 3415-3440
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    Microfluidic production of multiple emulsions and functional microcapsules

    T. Y. Lee, T. M. Choi, T. S. Shim, R. A. M. Frijns and S. Kim, Lab Chip, 2016, 16, 3415
    DOI: 10.1039/C6LC00809G

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