Geometrically Mediated Breakup of Drops in Microfluidic Devices

D. R. Link, S. L. Anna, D. A. Weitz, H. A. Stone

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

Microfluidic technology offers capabilities for the precise handling of small fluid volumes dispersed as droplets. To fully exploit this potential requires simultaneous generation of multiple size droplets. We demonstrate two methods for passively breaking larger drops into precisely controlled daughter drops using pressure-driven flow in simple microfluidic configurations: (i) a T junction and (ii) flow past isolated obstacles. We quantify conditions for breakup at a T junction and illustrate sequential breakup at T junctions for making small drops at high dispersed phase volume fractions.

Original languageEnglish (US)
Pages (from-to)4
Number of pages1
JournalPhysical review letters
Volume92
Issue number5
DOIs
StatePublished - 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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