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Advanced Materials

One Step Formation of Controllable Complex Emulsions: From Functional Particles to Simultaneous Encapsulation of Hydrophilic and Hydrophobic Agents into Desired Position

Authors

  • Chang-Hyung Choi,

    1. Department of Chemical Engineering, Chungnam National University, Yuseong-gu, Daejeon, 305-764, South Korea
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  • David A. Weitz,

    1. School of Engineering and Applied Sciences, Department of Physics, Harvard University, Cambridge, Massachusetts 02138, U.S.A.
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  • Chang-Soo Lee

    Corresponding author
    1. Department of Chemical Engineering, Chungnam National University, Yuseong-gu, Daejeon, 305-764, South Korea
    • Department of Chemical Engineering, Chungnam National University, Yuseong-gu, Daejeon, 305-764, South Korea.===

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Abstract

This article presents a one-step method for generating complex emulsions that exploits the phase separation of the emulsion droplet generated in the microchannel. This approach easily produces double, triple, quadruple, and Janus emulsions with monodisperse size. These emulsions can be used as useful templates for the synthesis of new functional materials, such as microcapsules, hemispheres, Janus particles and microcarriers that are capable of simultaneously encapsulating hydrophilic and hydrophobic compounds with selective compartmentalization in a one-step process.

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