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:Electrodiffusioosmosis in a Solid-State Nanopore Connecting Two Large Reservoirs: Optimum Pore Size
學年103
學期1
出版(發表)日期2014/08/01
作品名稱Electrodiffusioosmosis in a Solid-State Nanopore Connecting Two Large Reservoirs: Optimum Pore Size
作品名稱(其他語言)
著者Chung, Yu-Chih; Hsu, Jyh-Ping; Tseng, Shiojenn
單位淡江大學數學學系
出版者Washington, DC: American Chemical Society
著錄名稱、卷期、頁數The Journal of Physical Chemistry C 118(33), pp.19498-19504
摘要Considering emerging modern applications of nanopore-based sensing devices, we model the electrodiffusiophoresis in a charged solid-state nanopore connecting two large reservoirs. Previous analyses are extended for the first time to take account of the effect of ion concentration polarization, an important factor in real sized devices. We show that the relative magnitude of the double layer thickness and the nanopore size plays the key role, yielding profound and interesting results that are important to device design. Both the nanopore radius and its length have an optimum size at which a maximum electrodiffusioosmotic velocity can be achieved. For a fixed nanopore size, an optimum salt concentration is also present. For example, for an aqueous KCl solution if both the radius and the length of a nanopore is smaller than ca. 5 nm, the averaged salt concentration should exceed ca. 0.3 M so that the associated electrodiffusioosmotic velocity is fast enough to decelerate effectively the translocation velocity of an entity (e.g., DNA). Regression relationships correlating the axial liquid velocity at the nanopore center with nanopore radius and length are developed for design purposes.
關鍵字
語言英文
ISSN1932-7447
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,電子版,紙本
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