An electric bottle for colloids

M. T. Sullivan, K. Zhao, A. D. Hollingsworth, R. H. Austin, W. B. Russel, P. M. Chaikin

    Research output: Contribution to journalArticle

    Abstract

    Particle concentration is a dominant control parameter for colloids and other soft matter systems. We demonstrate a simple technique, "dielectrophoretic equilibrium," implemented as an "electric bottle," a planar capacitor in a larger volume. The uniform E field in the capacitor traps particles in this force-free region at a higher density than in the zero field regions outside. We show how the technique measures the equation of state and we initiate and grow colloidal crystals. "Dielectrophoretic equilibria" enable the study of a complete concentration-dependent phase diagram from a single microscopic sample, obviating the previous need for preparing a large number of samples.

    Original languageEnglish (US)
    Article number015703
    JournalPhysical Review Letters
    Volume96
    Issue number1
    DOIs
    StatePublished - Jan 13 2006

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    bottles
    colloids
    capacitors
    equations of state
    phase diagrams
    traps
    crystals

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Sullivan, M. T., Zhao, K., Hollingsworth, A. D., Austin, R. H., Russel, W. B., & Chaikin, P. M. (2006). An electric bottle for colloids. Physical Review Letters, 96(1), [015703]. https://doi.org/10.1103/PhysRevLett.96.015703

    An electric bottle for colloids. / Sullivan, M. T.; Zhao, K.; Hollingsworth, A. D.; Austin, R. H.; Russel, W. B.; Chaikin, P. M.

    In: Physical Review Letters, Vol. 96, No. 1, 015703, 13.01.2006.

    Research output: Contribution to journalArticle

    Sullivan, MT, Zhao, K, Hollingsworth, AD, Austin, RH, Russel, WB & Chaikin, PM 2006, 'An electric bottle for colloids', Physical Review Letters, vol. 96, no. 1, 015703. https://doi.org/10.1103/PhysRevLett.96.015703
    Sullivan MT, Zhao K, Hollingsworth AD, Austin RH, Russel WB, Chaikin PM. An electric bottle for colloids. Physical Review Letters. 2006 Jan 13;96(1). 015703. https://doi.org/10.1103/PhysRevLett.96.015703
    Sullivan, M. T. ; Zhao, K. ; Hollingsworth, A. D. ; Austin, R. H. ; Russel, W. B. ; Chaikin, P. M. / An electric bottle for colloids. In: Physical Review Letters. 2006 ; Vol. 96, No. 1.
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