教師資料查詢 | 類別: 期刊論文 | 教師: 曾琇瑱 Tseng Shio-jenn (瀏覽個人網頁)

標題:Effects of double-layer polarization and electroosmotic flow on the electrophoresis of a finite cylinder along the axis of a cylindrical pore
學年97
學期1
出版(發表)日期2008/09/01
作品名稱Effects of double-layer polarization and electroosmotic flow on the electrophoresis of a finite cylinder along the axis of a cylindrical pore
作品名稱(其他語言)
著者Hsu, Jyh-ping; Chen, Zheng-syun; 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Chemical Engineering Science 63(18), pp.4561-4569
摘要The electrophoresis of a rigid, finite cylindrical particle along the axis of a long cylindrical pore is analyzed theoretically under the conditions of arbitrary surface potential and double-layer thickness. The effects of double-layer polarization and electroosmotic flow on the electrophoretic behavior of the particle are discussed. We show that if both the particle and the pore are positively charged, the mobility of the particle has a local minimum as the thickness of double layer varies. Also, if the level of the surface potential of the particle is sufficiently high and its aspect ratio is sufficiently large, then its mobility may change its sign twice as the thickness of double layer (or the concentration of electrolytes) varies. These findings are of practical significance in designing an electrophoresis operation because it will influence the prediction of the charged conditions on a particle if electrophoresis is used as an analytical tool, and the separation efficiency, if it is adopted as a separation technique.
關鍵字Colloidal phenomena;Electroosmosis;Electrophoresis;Mathematical modeling;Boundary effect;Double-layer polarization
語言英文
ISSN0009-2509
期刊性質國外
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產學合作
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國別英國
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