Gel Electrophoresis: Importance of Concentration Dependent Permittivity and Double-Layer Polarization
學年 101
學期 1
出版(發表)日期 2012-12-01
作品名稱 Gel Electrophoresis: Importance of Concentration Dependent Permittivity and Double-Layer Polarization
作品名稱(其他語言)
著者 Hsu, Jyh-Ping; Huang, Chih-Hua; Tseng, Shiojenn
單位 淡江大學數學學系
出版者 Kidlington: Pergamon
著錄名稱、卷期、頁數 Chemical Engineering Science 84, pp.574-579
摘要 A gel-concentration dependent solution permittivity model is proposed for the first time, which is capable of fitting more accurately the experimental data in the literature than previous models, especially when gel concentration reaches ca. 3 wt%, which is not uncommon in practice. We show that gel polymer structure reduces the solution permittivity and raises the friction force acting on a particle, thereby reducing both its mobility and the degree of double-layer polarization (DLP), and interesting and important phenomenon in electrophoresis. If the viscosity of the liquid phase is sufficiently small and/or the hydrodynamic friction coefficient is sufficiently large, then DLP vanishes. This implies that the behavior of a particle in gel electrophoresis can be different both quantitatively and qualitatively from that in conventional electrophoresis.
關鍵字 Concentration-dependent permittivity; Double-layer polarization; Electrophoresis; Mathematical modeling; Nanoparticle; Transport processes
語言 en
ISSN 0009-2509 1873-4405
期刊性質 國外
收錄於
產學合作
通訊作者 Tseng, Shiojenn
審稿制度
國別 GBR
公開徵稿
出版型式 紙本 電子版
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