Studies of Ionic Current Rectification Using Polyethyleneimines Coated Glass Nanopipettes

doi:10.1021/ac3004852

CORC > 化学研究所 > 中国科学院化学研究所

	Studies of Ionic Current Rectification Using Polyethyleneimines Coated Glass Nanopipettes
	Liu, Shujuan 1; Dong, Yitong 1; Zhao, Wenbo 1; Xie, Xiang 1; Ji, Tianrong 1; Yin, Xiaohong 1; Liu, Yun 1; Liang, Zhongwei 3; Momotenko, Dmitry 2; Liang, Dehai 1
刊名	ANALYTICAL CHEMISTRY
	2012-07-03
卷号	84 期号:13 页码:5565-5573
ISSN号	0003-2700
DOI	10.1021/ac3004852
英文摘要	The modification of glass nanopipettes with polyethyleneimines (PEIs) has been successfully achieved by a relatively simple method, and the smallest tip opening is around 3 nm. Thus, in a much wider range of glass pipettes with radii from several nanometers to a few micrometers, the ion current rectification (ICR) phenomenon has been observed. The influences of different KCl concentrations, pH values, and tip radii on the ICR are investigated in detail. The sizes of PEIs have been determined by dynamic light scattering, and the effect of the sizes of PEIs for the modification, especially for a few nanometer-pipettes in radii, is also discussed. These findings systemically confirm and complement the theoretical model(7,18) and provide a platform for possible selectively molecular detection and mimic biological ion channels.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000305871300018
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/49683]
专题	中国科学院化学研究所
通讯作者	Shao, Yuanhua
作者单位	1.Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China 2.Ecole Polytech Fed Lausanne, Lab Electrochim Phys & Analyt, CH-1015 Lausanne, Switzerland 3.Beijing Res Inst Chem Ind, Beijing 100013, Peoples R China
推荐引用方式 GB/T 7714	Liu, Shujuan,Dong, Yitong,Zhao, Wenbo,et al. Studies of Ionic Current Rectification Using Polyethyleneimines Coated Glass Nanopipettes[J]. ANALYTICAL CHEMISTRY,2012,84(13):5565-5573.
APA	Liu, Shujuan.,Dong, Yitong.,Zhao, Wenbo.,Xie, Xiang.,Ji, Tianrong.,...&Shao, Yuanhua.(2012).Studies of Ionic Current Rectification Using Polyethyleneimines Coated Glass Nanopipettes.ANALYTICAL CHEMISTRY,84(13),5565-5573.
MLA	Liu, Shujuan,et al."Studies of Ionic Current Rectification Using Polyethyleneimines Coated Glass Nanopipettes".ANALYTICAL CHEMISTRY 84.13(2012):5565-5573.