期刊論文

學年 101
學期 2
出版(發表)日期 2013-07-01
作品名稱 Electrophoresis of a Soft Sphere in a Necked Cylindrical Nanopore
作品名稱(其他語言)
著者 Tseng, Shiojenn; Hsu, Jyh-Ping; Lo, Hong-Ming; Yeh, Li-Hsien
單位 淡江大學數學學系
出版者 Cambridge: R S C Publications
著錄名稱、卷期、頁數 Physical Chemistry Chemical Physics 15(28), pp.11758-11765
摘要 The influence of boundary shape on electrophoresis is modeled by considering a soft spherical particle comprising a positively charged rigid core and an uncharged membrane layer on the axis of a necked cylindrical pore with its throat positively charged. The presence of the throat makes the associated flow and electric fields nonuniform, yielding several interesting behaviors. In general, the reduction in the cross-section area of the pore intensifies the local electric field and, therefore, accelerates the particle. It also makes the ionic distribution nonuniform, and the electric field induced accelerates the particle. The maximum mobility occurs at the center of a throat, and the higher the charge density of the throat the larger the ratio of maximum mobility/mobility far away from the throat. This result is informative for the design of separation devices having variable cross sectional area.
關鍵字
語言 en
ISSN 1463-9084 1463-9076
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Yeh, Li-Hsien
審稿制度
國別 GBR
公開徵稿
出版型式 紙本 電子版
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