淡江大學機構典藏:Item 987654321/50384
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    Title: Electrophoresis of a charge-regulated sphere at an arbitrary position in a charged spherical cavity
    Authors: Hsu, J. P.;Chen, C. Y.;Lee, Duu-jong;曾琇瑱;Tseng, Shiojenn;Su, Ay
    Contributors: 淡江大學數學學系
    Keywords: Electrophoresis;Boundary effect;Charge-regulated sphere;Charged spherical cavity;Electroosmotic flow
    Date: 2008-09-01
    Issue Date: 2010-08-09 16:40:46 (UTC+8)
    Publisher: Elsevier
    Abstract: The electrophoresis of a charge-regulated spherical particle at an arbitrary position in a charged spherical cavity is modeled under conditions of low surface potential (<25 mV) and weak applied electric field (<25 kV/m). The charged cavity allows us to simulate the effect of electroosmotic flow, and the charge-regulated nature of the particle permits us to model various types of surface. The problem studied previously is reanalyzed based on a more rigorous electric force formula. In particular, the influences of various types of charged conditions on the electrophoretic behavior of a particle and the roles of all the relevant forces acting on the particle are examined in detail. Several new results are found. For instance, the mobility of a particle has a local minimum as the thickness of a double layer varies, which is not seen in the cases where the surface of a particle is maintained at a constant potential and at a constant charge density.
    Relation: Journal of Colloid and Interface Science 325(2), pp.516-525
    DOI: 10.1016/j.jcis.2008.05.036
    Appears in Collections:[Graduate Institute & Department of Mathematics] Journal Article

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