Microfluidics with ultrasound-driven bubbles

P.G.M. Marmottant, J.P. Raven, Johannes G.E. Gardeniers, Johan G. Bomer, Sascha Hilgenfeldt

Research output: Contribution to journalArticleAcademicpeer-review

73 Citations (Scopus)

Abstract

Microstreaming from oscillating bubbles is known to induce vigorous vortex flow. Here we show how to harness the power of bubble streaming in an experiment to achieve directed transport flow of high velocity, allowing design and manufacture of microfluidic MEMS devices. By combining oscillating bubbles with solid protrusions positioned on a patterned substrate, solid beads and lipid vesicles are guided in desired directions without microchannels. Simultaneously, the flow exerts controlled localized forces capable of opening and reclosing lipid membranes.
Original languageEnglish
Article number10.1017/S0022112006002746
Pages (from-to)109-118
Number of pages10
JournalJournal of fluid mechanics
Volume568
Issue number10
DOIs
Publication statusPublished - 10 Dec 2006

Keywords

  • EWI-8404
  • IR-63755
  • METIS-237703
  • BIOS-Micro/nanofluidics

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