Influence of Electroosmotic Flow on the Ionic Current Rectification in a pH-Regulated, Conical Nanopore
學年 104
學期 1
出版（發表）日期 2015-09-07
作品名稱 Influence of Electroosmotic Flow on the Ionic Current Rectification in a pH-Regulated, Conical Nanopore
作品名稱（其他語言）
著者 Lin, D. H.; C. Y. Lin; Shiojenn Tseng; J. P. Hsu
單位
出版者
著錄名稱、卷期、頁數 Nanoscale 7(33), pp.14023-14031
摘要 The ionic current rectification (ICR) is studied theoretically by considering a pH-regulated, conical nanopore. In particular, the effect of electroosmotic flow (EOF), which was often neglected in previous studies, is investigated by solving a set of coupled Poisson, Nernst–Planck, and Navier–Stokes equations. The behaviors of ICR under various conditions are examined by varying solution pH, bulk ionic concentration, and applied electric potential bias. We show that the EOF effect is significant when the bulk ionic concentration is medium high, the pH is far away from the iso-electric point, and the electric potential bias is high. The percentage deviation in the current rectification ratio arising from neglecting the EOF effect can be on the order of 100%. In addition, the behavior of the current rectification ratio at a high pH taking account of EOF is different both qualitatively and quantitatively from that without taking account of EOF.
關鍵字
語言 en
ISSN
期刊性質 國內
收錄於 SCI
產學合作
通訊作者
審稿制度 否
國別 TWN
公開徵稿
出版型式 ,電子版
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機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/109560 )