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 Deformable Polyelectrolytes in a Nanofluidic Channel
學年101
學期1
出版(發表)日期2013/01/01
作品名稱Electrophoresis of Deformable Polyelectrolytes in a Nanofluidic Channel
作品名稱(其他語言)
著者Tseng, Shiojenn; Lin, Chih-Yuan; Hsu, Jyh-Ping; Yeh, Li-Hsien
單位淡江大學數學學系
出版者Washington: American Chemical Society
著錄名稱、卷期、頁數Langmuir 29(7), pp.2446-2454
摘要The influence of the shape of a polyelectrolyte (PE) on its electrophoretic behavior in a nanofluidic channel is investigated by considering the translocation of a deformable ellipsoidal PE along the axis of a cylindrical nanochannel. A continuum model comprising a Poisson equation for the electric potential, Nernst-Planck equations for the ionic concentrations, and modified Stokes equations for the flow field is adopted. The effects of the PE shape, boundary, bulk ionic concentration, counterion condensation, electroosmotic retardation flow, and electroosmotic flow (EOF) on the PE mobility are discussed. Several interesting behaviors are observed. For example, if the nanochannel is uncharged and the double layer is thick, then the PE mobility increases (decreases) with increasing double-layer thickness for a smaller (larger) boundary, which has not been reported previously. If the nanochannel is negatively charged and the double layer is thick, then a negatively charged PE moves in the direction of the experimental data and the design of nanochannel-based sensing devices.
關鍵字
語言英文(美國)
ISSN1520-5827;0743-7463
期刊性質國外
收錄於SCI
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式電子版;紙本
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