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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/97838

    Title: Gel Electrophoresis: Importance of Concentration Dependent Permittivity and Double-Layer Polarization
    Authors: Hsu, Jyh-Ping;Huang, Chih-Hua;Tseng, Shiojenn
    Contributors: 淡江大學數學學系
    Keywords: Concentration-dependent permittivity;Double-layer polarization;Electrophoresis;Mathematical modeling;Nanoparticle;Transport processes
    Date: 2012-12
    Issue Date: 2014-04-23 11:20:13 (UTC+8)
    Publisher: Kidlington: Pergamon
    Abstract: A gel-concentration dependent solution permittivity model is proposed for the first time, which is capable of fitting more accurately the experimental data in the literature than previous models, especially when gel concentration reaches ca. 3 wt%, which is not uncommon in practice. We show that gel polymer structure reduces the solution permittivity and raises the friction force acting on a particle, thereby reducing both its mobility and the degree of double-layer polarization (DLP), and interesting and important phenomenon in electrophoresis. If the viscosity of the liquid phase is sufficiently small and/or the hydrodynamic friction coefficient is sufficiently large, then DLP vanishes. This implies that the behavior of a particle in gel electrophoresis can be different both quantitatively and qualitatively from that in conventional electrophoresis.
    Relation: Chemical Engineering Science 84, pp.574-579
    DOI: 10.1016/j.ces.2012.08.032
    Appears in Collections:[Graduate Institute & Department of Mathematics] Journal Article

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