Monodisperse double emulsions generated from a microcapillary device

A. S. Utada, E. Lorenceau, D. R. Link, P. D. Kaplan, H. A. Stone, D. A. Weitz

Research output: Contribution to journalArticlepeer-review

1549 Scopus citations

Abstract

Double emulsions are highly structured fluids consisting of emulsion drops that contain smaller droplets inside. Although double emulsions are potentially of commercial value, traditional fabrication by means of two emulsification steps leads to very ill-controlled structuring. Using a microcapillary device, we fabricated double emulsions that contained a single internal droplet in a core-shell geometry. We show that the droplet size can be quantitatively predicted from the flow profiles of the fluids. The double emulsions were used to generate encapsulation structures by manipulating the properties of the fluid that makes up the shell. The high degree of control afforded by this method and the completely separate fluid streams make this a flexible and promising technique.

Original languageEnglish (US)
Pages (from-to)537-541
Number of pages5
JournalScience
Volume308
Issue number5721
DOIs
StatePublished - Apr 22 2005

All Science Journal Classification (ASJC) codes

  • General

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