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:Electrophoresis of pH-regulated, zwitterionic particles: Effect of self-induced nonuniform surface charge
學年
學期
出版(發表)日期2014/05/01
作品名稱Electrophoresis of pH-regulated, zwitterionic particles: Effect of self-induced nonuniform surface charge
作品名稱(其他語言)
著者Chen, Yu-Yen; Hsu, Jyh-Ping; Tseng, Shiojenn
單位淡江大學數學學系
出版者Maryland Heights: Academic Press
著錄名稱、卷期、頁數Journal of Colloid and Interface Science 421, pp.154-159
摘要The electrophoresis of a pH-regulated, zwittterionic nanoparticle, taking account of its self-induced nonuniform surface charge, the presence of multiple ionic species, and the effect of double-layer polarization, is modeled. This extends previous models to a case closer to reality because the charged properties of a particle can be influenced by both its physicochemical nature and the solution conditions. We show that the nonuniform surface charge distribution induces a local electric field having the direction either opposite to or the same as that of the applied electric field, thereby either reducing or raising the particle velocity. This effect is most important when both the surface potential and the degree of nonuniformality are high. The competition of the effects of the position dependent double layer thickness, the surface proton distribution, and the double-layer polarization yields complicated and interesting behaviors. Depending upon the level of pH, the influence of the types of background salt on the particle mobility can be significant.
關鍵字Electrophoresis; pH-regulated nanoparticles; Self-induced nonuniform surface charge; Types of background electrolytes
語言英文
ISSN0021-9797;1095-7103
期刊性質國外
收錄於
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式紙本;電子版
相關連結
SDGs
Google+ 推薦功能,讓全世界都能看到您的推薦!