期刊論文

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 en_US
ISSN 0927-7765
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 NLD
公開徵稿
出版型式 ,電子版,紙本
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