The importance of wall chemistry in Nanofluidics

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    1 Citation (Scopus)
    5 Downloads (Pure)

    Abstract

    ABSTRACT AND INTRODUCTION:
    It is common knowledge that the surface charge in micro- and nanofluidic systems and hence the intensity of electrokinetic phenomena is a function of pH, ionic strength and type of solute. It is not often realized however that transient changes in surface charge will be accompanied by changes in the concentration of the surface-binding ions. Since the latter effect increases with increasing surface-to-volume ratio, it is especially relevant in nanofluidic systems. Ionic binding also limits the efficiency of voltage gating in so-called ionic transistors, causing changes in ionic concentration rather than changes in surface potential. In this contribution we present a conceptual model that accounts for ion binding.
    Original languageEnglish
    Title of host publicationThe 14th International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2010
    EditorsSabeth Verpoorte, Helen Andersson-Svahn, Jenny Emnéus, Nicole Pamme
    Place of PublicationSan Diego
    PublisherChemical and Biological Micro Systems Society
    Pages1403-1405
    Number of pages3
    ISBN (Print)978-0-9798064-3-8
    Publication statusPublished - 6 Oct 2010
    Event14th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2010, µTAS 2010 - Groningen, Netherlands
    Duration: 3 Oct 20107 Oct 2010
    Conference number: 14

    Publication series

    NameInternational Conference on Miniaterized Systems for Chemistry and Life Sciences : [proceedings]
    PublisherChemical and Biological Microsystems Society
    Volume2010
    ISSN (Print)1556-5904

    Conference

    Conference14th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2010, µTAS 2010
    Abbreviated titleMicroTAS
    CountryNetherlands
    CityGroningen
    Period3/10/107/10/10

      Fingerprint

    Keywords

    • Nanofluidics
    • Surface charge density
    • Surface potential
    • Voltage gating
    • Ionic transistor
    • ISFET
    • FlowFET

    Cite this

    Eijkel, J. C. T., & van den Berg, A. (2010). The importance of wall chemistry in Nanofluidics. In S. Verpoorte, H. Andersson-Svahn, J. Emnéus, & N. Pamme (Eds.), The 14th International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2010 (pp. 1403-1405). (International Conference on Miniaterized Systems for Chemistry and Life Sciences : [proceedings]; Vol. 2010). San Diego: Chemical and Biological Micro Systems Society.