Electric Field-Responsive Nanopores with Ion Selectivity: Controlling Based on Transport Resistance

被引：8

作者：

Zhu, Yudan ^{[1
]}

Ruan, Yang ^{[1
]}

Wu, Ximing ^{[1
]}

Lu, Xiaohua ^{[1
]}

Zhang, Yumeng ^{[1
]}

Lu, Linghong ^{[1
]}

机构：

[1] Nanjing Tech Univ, Coll Chem Engn, Key Lab Mat Oriented Chem Engn, Nanjing 210009, Jiangsu, Peoples R China

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 2016年 / 39卷 / 05期

基金：

美国国家科学基金会;

关键词：

Electric field-responsive nanopores; Ion selectivity; Molecular simulation; Nanochannels; Transport resistance; MOLECULAR-DYNAMICS SIMULATIONS; CARBON NANOTUBES; WATER DESALINATION; ATP SYNTHESIS; K+; MEMBRANES; CONDUCTION; HYDRATION; GRAPHENE; PORES;

D O I：

10.1002/ceat.201500637

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Using external stimuli to control ionic transport behavior in nanopores is an important focus of nanodevice research allowing numerous potential applications. A novel strategy was investigated to control ionic-transport resistance responses to the electric field intensity in a nanopore and regulate ionic selectivity. Molecular simulations were performed to examine the transport behaviors of K+ and Na+ in a carbon nanotube-based biomimetic nanopore under different electric fields. The responses of the modified group to the electric field intensity induced variations in ionic transport resistance, which then led to improved ionic selectivity. This result indicates that driving force and resistance are simultaneously affected by external stimuli under nanoconfinement.

引用

页码：993 / 997

页数：5

共 29 条

[1] The structure of the potassium channel:: Molecular basis of K+ conduction and selectivity [J].