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    题名: Electrophoretic mobility of a particle covered with an ion-penetrable membrane
    作者: Huang, Shi-Wei;Hsu, Jyh-ping;曾琇瑱;Tseng, Shio-jenn
    贡献者: 淡江大學數學學系
    日期: 2001-06-10
    上传时间: 2010-01-28 07:01:15 (UTC+8)
    出版者: Wiley-Blackwell
    摘要: The electrophoretic behavior of a planar particle covered by an ion-penetrable membrane, which simulates a biological entity, is investigated. We show that, in general, a point charge model will overestimate the electrophoretic mobility of a particle and the deviation increases with the increase in the concentration of fixed charge and with the decrease in the thickness of membrane layer. As in the case of a point charge model, the present model also predicts a local maximum in the absolute mobility as the thickness of membrane layer varies. If the sizes of counterions of various valences are the same, then the lower the valence of counterions, the larger the mobility, and the larger the counterions, the greater the mobility. The latter is consistent with the experimental observations in the literature. For the level of the concentration of fixed charge examined, the effect of coions on the mobility is negligible.
    關聯: Electrophoresis 22(10), pp.1881-1886
    DOI: 10.1002/1522-2683(200106)22:10<1881::AID-ELPS1881>3.0.CO;2-P
    显示于类别:[數學學系暨研究所] 期刊論文

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