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One-Step Emulsification of Multiple Concentric Shells with Capillary Microfluidic Devices


  • This work was supported by Amore-Pacific, the NSF (DMR-1006546) and the Harvard MRSEC (DMR-0820484).


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Polymeric onions: A facile method to produce monodisperse multiple emulsion drops of high order is developed using a capillary microfluidic device. Coaxial multiphase flows are stabilized by confinement in microcapillary and emulsified to multiple emulsion drops. The breakup of coaxial interfaces, triggered by the core-drop, facilitates the making of multiple emulsion drops of onionlike configuration.