Principles of microfluidic actuation by modulation of surface stresses

A.A. Darhuber, S.M. Troian

    Research output: Contribution to journalArticleAcademicpeer-review

    382 Citations (Scopus)
    2 Downloads (Pure)

    Abstract

    Development and optimization of multifunctional devices for fluidic manipulation of films, drops, and bubbles require detailed understanding of interfacial phenomena and microhydrodynamic flows. Systems are distinguished by a large surface to volume ratio and flow at small Reynolds, capillary, and Bond numbers are strongly influenced by boundary effects and therefore amenable to control by a variety of surface treatments and surface forces. We review the principles underlying common techniques for actuation of droplets and films on homogeneous, chemically patterned, and topologically textured surfaces by modulation of normal or shear stresses.
    Original languageEnglish
    Pages (from-to)425-455
    Number of pages31
    JournalAnnual Review of Fluid Mechanics
    Volume37
    DOIs
    Publication statusPublished - 2005

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