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 Double-layer Polarization and Chemiosmosis on the Diffusiophoresis of a Non-spherical Polyelectrolyte
學年
學期
出版(發表)日期2015/05/15
作品名稱Influence of Double-layer Polarization and Chemiosmosis on the Diffusiophoresis of a Non-spherical Polyelectrolyte
作品名稱(其他語言)
著者Tseng, Shiojenn; D. H. Lin; J. P. Hsu
單位
出版者
著錄名稱、卷期、頁數Journal of Colloid and Interface Science 446, pp.272-281
摘要The diffusiophoresis of a non-spherical polyelectrolyte (PE) is modeled theoretically by considering an ellipsoidal PE of fixed volume and varying aspect ratio, capable of simulating porous entities such as DNAs, proteins, and synthetic polymeric particles. A continuum model comprising coupled Poisson–Nernst–Planck equations and Stokes equations is adopted. Parameters including the physicochemical properties of a PE, the degree of deformation, and the bulk ionic concentration are examined in detail for their influence on the diffusiophoretic behavior of the PE. We show that the effects of double-layer polarization, polarization of the condensed counterions inside a PE, and the chemiosmotic retardation flow inside it yield complicated diffusiophoretic behavior. In particular, the mobility of an elliptic PE can differ both quantitatively and qualitatively from that of a spherical PE. This phenomenon, which has not been reported previously, provides valuable information for both experimental data interpretation and device design.
關鍵字Diffusiophoresis; Non-spherical polyelectrolyte; Double-layer polarization; Chemiosmosis
語言英文
ISSN
期刊性質國內
收錄於SCI;
產學合作
通訊作者
審稿制度
國別中華民國
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