Electrophoresis of a charge-regulated sphere at an arbitrary position in a charged spherical cavity
學年 97
學期 1
出版(發表)日期 2008-09-01
作品名稱 Electrophoresis of a charge-regulated sphere at an arbitrary position in a charged spherical cavity
作品名稱(其他語言)
著者 Hsu, J. P.; Chen, C. Y.; Lee, Duu-jong; 曾琇瑱; Tseng, Shiojenn; Su, Ay
單位 淡江大學數學學系
出版者 Elsevier
著錄名稱、卷期、頁數 Journal of Colloid and Interface Science 325(2), pp.516-525
摘要 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.
關鍵字 Electrophoresis;Boundary effect;Charge-regulated sphere;Charged spherical cavity;Electroosmotic flow
語言 en
ISSN 0021-9797
期刊性質 國內
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國別 TWN
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出版型式 ,電子版
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