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    Title: Electrophoresis of a Charge-Regulated Soft Sphere in a Charged Cylindrical Pore
    Authors: Zhang, Xiaogang;Hsu, Jyh-Ping;Chen, Zheng-Syun;Yeh, Li-Hsien;Ku, Ming-Hong;Tseng, Shiojenn
    Contributors: 淡江大學數學學系
    Keywords: Applied electric field;Boundary effects;Bulk liquid;Cylindrical Pores;Double layers;Electroosmotic flow;Electrophoretic behavior;Fixed Charges;Local maximum;Membrane layers;pH value;Porous layers;Rigid core;Soft spheres;Spherical particle;Electric fields;Electrochemistry;Electroosmosis;Liquids;Electrophoretic mobility
    Date: 2010-01
    Issue Date: 2013-06-13 11:26:07 (UTC+8)
    Publisher: Washington, DC: American Chemical Society
    Abstract: The boundary effect on the electrophoresis of a soft spherical particle, which comprises a rigid core and a porous layer, along the axis of a cylindrical pore is analyzed under the conditions of low surface potential and weak applied electric field. The porous layer of the particle is of charge-regulated nature where the distribution of fixed charge depends on the degree of dissociation/association reaction of the ionizable function groups contained in the porous layer. The pore might be charged, implying that the effect of electroosmotic flow can play a role. The influences of the nature of the porous layer of a particle, the thickness of the double layer, the pH of the bulk liquid, and the relative size of a pore on the electrophoretic behavior of the particle are investigated. Several unexpected and interesting results are obtained. For instance, if the pH value of the bulk liquid or the thickness of the membrane layer takes a medium large value, the electrophoretic mobility of the particle has a local maximum as the thickness of the double layer varies.
    Relation: Journal of Physical Chemistry B 114(4), pp.1621-1631
    DOI: 10.1021/jp9062093
    Appears in Collections:[數學學系暨研究所] 期刊論文

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