Ion pumping in nanochannels using an asymmetric electrode array

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    Abstract

    We demonstrate an ion pump, consisting of a nanochannel with an AC driven asymmetric electrode array. Our system enables us to actively pump ions using a low driving voltage. In all experiments the electrical double layers are overlapping. Via viscous coupling ion pumping is accompanied by liquid pumping. Actuation below 500 mV at 10 Hz results in a liquid velocity of ~10 μm/s, corresponding to an electrical ion current of ~400 fA. Finite element simulations support the experimental data.
    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
    Pages206-208
    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
    Number412
    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-14975
    • METIS-255463
    • IR-65348

    Cite this

    Sparreboom, W., Cucu, C. F., Eijkel, J. C. T., & van den Berg, A. (2008). Ion pumping in nanochannels using an asymmetric electrode array. 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. 206-208). (Micro Total Analysis Systems; Vol. 1, No. 412). San Diego: Chemical and Biological Micro Systems Society.