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:Capillary Osmosis in a Charged Nanopore Connecting Two Large Reservoirs
學年101
學期2
出版(發表)日期2013/07/01
作品名稱Capillary Osmosis in a Charged Nanopore Connecting Two Large Reservoirs
作品名稱(其他語言)
著者Liu, Kuan-Liang; 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Langmuir 29(30), pp.9598-9603
摘要Experimental evidence revealed that the performance of nanopore-based biosensing devices can be improved by applying a salt concentration gradient. To provide a theoretical explanation for this observation and explore the mechanisms involved, we model the capillary osmosis (or diffusioosmosis) in a charged solid-state nanopore connecting two large reservoirs. The effects of nanopore geometry and the reservoir salt concentrations are examined. We show that the capillary osmotic flow is from the high salt concentration reservoir to the low salt concentration one, and its magnitude has a maximum as the reservoir salt concentrations vary. In general, the shorter the nanopore and/or the smaller its radius, the faster the osmotic flow. This flow enhances the current recognition, and the ion concentration polarization across nanopore openings raises the entity capture rate, thereby being capable of improving the performance of electrophoresis-based biosensors. The results gathered provide necessary information for designing nanopore-based biosensor devices.
關鍵字
語言英文
ISSN0743-7463;1520-5827
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
出版型式紙本;電子版
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