Generation of antibubbles from core-shell double emulsion templates produced by microfluidics

J.E. Silpe, J.K. Nunes, A.T. Poortinga, H.A. Stone

    Research output: Contribution to journalArticleAcademicpeer-review

    14 Citations (Scopus)

    Abstract

    We report the preparation of antibubbles by microfluidic methods. More specifically, we demonstrate a two-step approach, wherein a monodisperse water-in-oil-in-water (W/O/W) emulsion of core-shell construction is first generated via microfluidics and freeze-dried thereafter to yield, upon subsequent reconstitution, an aqueous dispersion of antibubbles. Stable antibubbles are attained by stabilization of the air-water interfaces through a combination of adsorbed particles and polymeric surfactant. The antibubbles strongly resemble the double emulsion templates from which they were formed. When triggered to release, antibubbles show complete release of their cores within about 100 ms.

    Original languageEnglish
    Pages (from-to)8782-8787
    Number of pages6
    JournalLangmuir
    Volume29
    Issue number28
    DOIs
    Publication statusPublished - 16 Jul 2013

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