An automated full-chip micro-piv setup for measuring microchannel acoustophoresis: Simultaneous determination of forces from acoustic radiation and acoustic streaming

Rune Barnkob, P. Augustsson, T. Laurell, Henrik Bruus

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    We present a novel μm-resolution particle-image velocimetry setup capable of automated full-chip measurements of microchannel acoustophoresis. Our system allows for fast collection of a sufficient amount of data enabling reliable determination of the influence from the forces from acoustic radiation and acoustic streaming acting simultaneously on microbead suspensions in a microfluidic system. From a series of acoustophoretic focusing experiments on 5 μm, 3 μm, and 2 μm polystyrene (PS) microbead suspensions, we quantify the particle velocity induced by the acoustic radiation force and show that it scales with the expected microbead radius to the power two.
    Original languageEnglish
    Title of host publicationProceedings of the 14. International Conference on Miniaturized Systems for Chemistry and Life Sciences
    Publication date2011
    Pages1247-1249
    ISBN (Print)978-0-9798064-3-8
    Publication statusPublished - 2011
    Event14th International Conference on Miniaturized Systems for Chemistry and Life Sciences - Groningen, Netherlands
    Duration: 3 Oct 20107 Oct 2010
    Conference number: 14

    Conference

    Conference14th International Conference on Miniaturized Systems for Chemistry and Life Sciences
    Number14
    CountryNetherlands
    CityGroningen
    Period03/10/201007/10/2010

    Keywords

    • Ultrasound particle handling
    • Micro-PIV
    • Acoustic radiation/streaming
    • Acoustophoresis

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