Ion Current Rectification Behavior of Bioinspired Nanopores Having a pH-Tunable Zwitterionic Surface | |
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學年 | 105 |
學期 | 2 |
出版(發表)日期 | 2017-04-04 |
作品名稱 | Ion Current Rectification Behavior of Bioinspired Nanopores Having a pH-Tunable Zwitterionic Surface |
作品名稱(其他語言) | |
著者 | Hsu, J.P.; H.H., Wu; C.Y. Lin; S. Tseng |
單位 | |
出版者 | |
著錄名稱、卷期、頁數 | Analytical Chemistry 89(7), p.3952-3958 |
摘要 | The ion current rectification behavior of bioinspired nanopores is modeled by adopting a bullet-shaped nanopore having a pH-tunable zwitterionic surface, focusing on discussing the underlying mechanisms. We show that with its specific geometry, such nanopore is capable of exhibiting several interesting behaviors, including ion concentration polarization and ion current rectification. The influences of the nanopore shape, solution pH, and bulk salt concentration on the associated ion current rectification behavior are examined. We found that if pH exceeds the isoelectric point, the rectification factor has a local maximum as the curvature of the nanopore surface varies, and if it is lower than the isoelectric point, that factor increases (rectification effect decreases) monotonically with increasing surface curvature. In addition to capable of interpreting relevant electrokinetic phenomena, the results gathered also provide necessary information for a sophisticated design of relevant devices. |
關鍵字 | |
語言 | en_US |
ISSN | 1520-6882 |
期刊性質 | 國外 |
收錄於 | SCI EI |
產學合作 | |
通訊作者 | Tseng, SJ.曾琇瑱 |
審稿制度 | 是 |
國別 | USA |
公開徵稿 | |
出版型式 | ,電子版,紙本 |
相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/119837 ) |