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:Influence of Boundary on the Effect of Double-layer Polarization and the Electrophoretic Behavior of Soft Biocolloids
學年100
學期1
出版(發表)日期2011/12/01
作品名稱Influence of Boundary on the Effect of Double-layer Polarization and the Electrophoretic Behavior of Soft Biocolloids
作品名稱(其他語言)
著者Yeh, Li-Hsien; Fang, Kuo-Ying; Hsu, Jyh-Ping; Tseng, Shiojenn
單位淡江大學數學學系
出版者Amsterdam: Elsevier BV
著錄名稱、卷期、頁數Colloids and Surfaces B: Biointerfaces 88(2), pp.559-567
摘要The electrophoresis of a soft particle comprising a rigid core and a charged porous membrane layer in a narrow space is modeled. This simulates, for example, the capillary electrophoresis of biocolloids such as cells and microorganisms, and biosensor types of device. We show that, in addition to the boundary effect, the effects of double-layer polarization (DLP) and the electroosmotic retardation flow can be significant, yielding interesting electrophoretic behaviors. For example, if the friction coefficient of the membrane layer and/or the boundary is large, then the DLP effect can be offset by the electroosmotic retardation flow, making the particle mobility to decrease with increasing double layer thickness, which is qualitatively consistent with many experimental observations in the literature, but has not been explained clearly in previous analyses. In addition, depending upon the thickness of double layer, the friction of the membrane layer of a particle can either retard or accelerate its movement, an interesting result which has not been reported previously. This work is the first attempt to show solid evidence for the influence of a boundary on the effect of DLP and the electrophoretic behavior of soft particles. The model proposed is verified by the experimental data in the literature. The results of numerical simulation provide valuable information for the design of bio-analytical apparatus such as nanopore-based sensing applications and for the interpretation of relevant experimental data.
關鍵字Electrophoresis; Biocolloids; Soft particles; Boundary effect; Double-layer polarization; Electroosmotic retardation flow
語言英文
ISSN0927-7765
期刊性質國外
收錄於
產學合作
通訊作者Hsu, Jyh-Ping
審稿制度
國別荷蘭
公開徵稿
出版型式紙本
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