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 a Charge-Regulated Soft Sphere: Importance of Effective Membrane Charge
學年101
學期2
出版(發表)日期2013/02/01
作品名稱Electrophoresis of a Charge-Regulated Soft Sphere: Importance of Effective Membrane Charge
作品名稱(其他語言)
著者Tseng, Shiojenn; Hsieh, Tsung-Hsien; Yeh, Li-Hsien; Wang, Nan; Hsu, Jyh-Ping
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 102, pp.864–870
摘要The importance of the effective membrane charge on the electrophoretic behavior of a soft spherical particle comprising a rigid core and a charge-regulated membrane layer, mimicking both inorganic and biological colloids, is investigated. The mobility of the particle is simulated under various conditions by varying the double layer thickness, the bulk solution pH, and the charged conditions of the membrane layer. Several interesting electrophoretic behaviors that are of practical significance, are observed. For example, the particle mobility can be controlled by adjusting its properties such as the ratios of (acidic equilibrium constant/basic equilibrium constant) and (concentration of acidic functional groups/that of basic functional groups). Double layer polarization (DLP) is found to render the soft particle having behaviors different from those of the corresponding rigid particle. For instance, DLP can either be intensified or weakened, depending upon the strength of the hydrodynamic force and the electric force acting on the membrane layer. As the bulk electrolyte concentration increases in a certain range, because double layer shrinks into the membrane layer, its effective charge density increases, so is the particle mobility.
關鍵字Electrophoresis;Double-layer polarization;Soft particles;Biological colloids;Charge-regulated membrane
語言英文(美國)
ISSN0927-7765
期刊性質國外
收錄於SCI;
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,電子版,紙本
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