Single glass nanopore-based regenerable sensing platforms with a non-immobilized polyglutamic acid probe for selective detection of cupric ions

	Single glass nanopore-based regenerable sensing platforms with a non-immobilized polyglutamic acid probe for selective detection of cupric ions
	Chen,Lizhen; He,Haili; Xu,Xiaolong; Jin,Yongdong
刊名	analytica chimica acta
	2015
卷号	889 期号:9 页码:98-105
关键词	ANODIC-STRIPPING VOLTAMMETRY COPPER IONS CURRENT RECTIFICATION PROTEIN NANOPORE COMPLEX METALS SPECTROMETRY NANOPIPETTE ELECTRODES PEPTIDE
通讯作者	jin,yd
英文摘要	a single glass capillary nanopore-based sensing platform for rapid and selective detection of cupric ions is demonstrated by utilizing polyglutamic acid (pga) as a non-immobilized probe. the detection is based on the significant decrease of ionic current through nanopore and the reversal of ion current rectification responses induced by the chelated cupric ions on the probes when in the presence of cupric ions. pga shows high selectivity for detecting cupric ions rather than other metal ions. the sensitivity of the sensing platform can be improved about 1-2 orders of magnitude by employing asymmetric salt gradients during the measurements. and the pga-based nanopore sensing platform shows excellent regenerability for cu2+ sensing applications. in addition, the method is found effective and reliable for the detection of cupric ions in real samples with small volume down to 20 ml. this nanopore-based sensing platform will find promising practical applications for the detection of cupric ions. (c) 2015 elsevier b.v. all rights reserved.
收录类别	SCI
语种	英语
WOS记录号	WOS:000360645200008
公开日期	2016-05-31
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/65123]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Chen,Lizhen,He,Haili,Xu,Xiaolong,et al. Single glass nanopore-based regenerable sensing platforms with a non-immobilized polyglutamic acid probe for selective detection of cupric ions[J]. analytica chimica acta,2015,889(9):98-105.
APA	Chen,Lizhen,He,Haili,Xu,Xiaolong,&Jin,Yongdong.(2015).Single glass nanopore-based regenerable sensing platforms with a non-immobilized polyglutamic acid probe for selective detection of cupric ions.analytica chimica acta,889(9),98-105.
MLA	Chen,Lizhen,et al."Single glass nanopore-based regenerable sensing platforms with a non-immobilized polyglutamic acid probe for selective detection of cupric ions".analytica chimica acta 889.9(2015):98-105.