Ion-enrichment and ion-depletion effect of nanochannel structures

被引：489

作者：

Pu, QS

Yun, JS

Temkin, H

Liu, SR ^{[1
]}

机构：

[1] Texas Tech Univ, Dept Chem & Biochem, Lubbock, TX 79409 USA

[2] Texas Tech Univ, Dept Elect Engn & Comp Sci, Lubbock, TX 79409 USA

来源：

NANO LETTERS | 2004年 / 4卷 / 06期

关键词：

D O I：

10.1021/nl0494811

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Unique properties exist in nanofluidic channels. In this paper, we report a new phenomenon, ion enrichment/depletion, associated with nanochannel structures. As a voltage is applied across a nanochannel, ions are rapidly enriched at one end and depleted at the other end of the nanochannel. The degree of this enrichment and depletion is directly related to the extent of double-layer overlap. A simple model is presented to qualitatively interpret this phenomenon.

引用

页码：1099 / 1103

页数：5

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