The effect of interfacial forces on 2-phase microfluidics

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    Abstract

    We present the influence of both the solid-liquid interfacial force (surface wettability) and liquid-liquid interfacial force (added surfactants) on water-oil two-phase flow in microfluidic devices. Experimental results show that, in contrast to macroscale experiments, the surface wettability crucially determines the emulsion type created in the microchannels: O/W in hydrophilic channel and W/O in hydrophobic channel. Surfactants, however, determines the flow pattern, changing from droplet-based to stratified flow by decreasing �?�wo.
    Original languageUndefined
    Title of host publication12th International Conference on Miniaturized Systems for Chemistry and Life Sciences
    EditorsL.E. Locascio, M. Gaitan, B.M. Paegel, D.J. Ross, W.N. Vreeland
    Place of PublicationSan Diego
    PublisherChemical and Biological Micro Systems Society
    Pages790-792
    Number of pages3
    ISBN (Print)978-0-9798064-1-4
    Publication statusPublished - 12 Oct 2008
    Event12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2008 - San Diego, United States
    Duration: 12 Oct 200816 Oct 2008
    Conference number: 12

    Publication series

    NameMicro Total Analysis Systems
    PublisherChemical and Biological Micro Systems Society
    Volume1
    ISSN (Print)1556-5890

    Conference

    Conference12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2008
    Abbreviated titleMicroTAS
    CountryUnited States
    CitySan Diego
    Period12/10/0816/10/08

    Keywords

    • EWI-14979
    • METIS-256145
    • IR-62716

    Cite this

    Shui, L., Eijkel, J. C. T., Wijnperle, D., & van den Berg, A. (2008). The effect of interfacial forces on 2-phase microfluidics. In L. E. Locascio, M. Gaitan, B. M. Paegel, D. J. Ross, & W. N. Vreeland (Eds.), 12th International Conference on Miniaturized Systems for Chemistry and Life Sciences (pp. 790-792). (Micro Total Analysis Systems; Vol. 1). San Diego: Chemical and Biological Micro Systems Society.