Functionalized polypyrrole nanotube arrays as electrochemical biosensor for the determination of copper ions

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Functionalized polypyrrole nanotube arrays as electrochemical biosensor for the determination of copper ions
	Lin, Meng 1,3; Hu, Xiaoke1,3 ; Ma, Zhaohu 2; Chen, Lingxin1,3
刊名	ANALYTICA CHIMICA ACTA
	2012-10-09
卷号	746 期号:.页码:63-69
关键词	Electrochemical biosensor Conducting polymer Polypyrrole nanotube arrays Zinc oxide nanowire arrays Copper ions
ISSN号	0003-2670
通讯作者	Chen, LX (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Chunhui Rd 17, Yantai 264003, Peoples R China.
产权排序	[Lin, Meng; Hu, Xiaoke; Chen, Lingxin] YICCAS, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China; [Ma, Zhaohu] Marine Environm Monitoring & Forecasting Ctr Yant, Yantai 264003, Peoples R China; [Lin, Meng; Hu, Xiaoke; Chen, Lingxin] Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China
中文摘要	A novel electrochemical biosensor based on functionalized polypyrrole (PPy) nanotube arrays modified with a tripeptide (Gly-Gly-His) proved to be highly effective for electrochemical analysis of copper ions (Cu2+). The vertically oriented PPy nanotube arrays were electropolymerized by using modified zinc oxide (ZnO) nanowire arrays as templates which were electrodeposited on indium-tin oxide (ITO) coated glass substrates. The electrodes were functionalized by appending pyrrole-alpha-carboxylic acid onto the surface of polypyrrole nanotube arrays by electrochemical polymerization. The carboxylic groups of the polymer were covalently coupled with the amine groups of the tripeptide, and its structural features were confirmed by attenuated total reflection infrared (ATR-IR) spectroscopy. The tripeptide modified PPy nanotube arrays electrode was used for the electrochemical analysis of various trace copper ions by square wave voltammetry. The electrode was found to be highly sensitive and selective to Cu2+ in the range of 0.1-30 mu M. Furthermore, the developed biosensor exhibited a high stability and reproducibility, despite the repeated use of the biosensor electrode. (C) 2012 Elsevier B.V. All rights reserved.
英文摘要	A novel electrochemical biosensor based on functionalized polypyrrole (PPy) nanotube arrays modified with a tripeptide (Gly-Gly-His) proved to be highly effective for electrochemical analysis of copper ions (Cu2+). The vertically oriented PPy nanotube arrays were electropolymerized by using modified zinc oxide (ZnO) nanowire arrays as templates which were electrodeposited on indium-tin oxide (ITO) coated glass substrates. The electrodes were functionalized by appending pyrrole-alpha-carboxylic acid onto the surface of polypyrrole nanotube arrays by electrochemical polymerization. The carboxylic groups of the polymer were covalently coupled with the amine groups of the tripeptide, and its structural features were confirmed by attenuated total reflection infrared (ATR-IR) spectroscopy. The tripeptide modified PPy nanotube arrays electrode was used for the electrochemical analysis of various trace copper ions by square wave voltammetry. The electrode was found to be highly sensitive and selective to Cu2+ in the range of 0.1-30 mu M. Furthermore, the developed biosensor exhibited a high stability and reproducibility, despite the repeated use of the biosensor electrode. (C) 2012 Elsevier B.V. All rights reserved.
学科主题	Chemistry
研究领域[WOS]	Chemistry
关键词[WOS]	GLY-HIS TRIPEPTIDE ; CONDUCTING-POLYMER ; NANOWIRE ARRAY ; TEMPLATES ; GROWTH ; IMMOBILIZATION ; NANOMATERIALS ; POLYANILINE ; ELECTRODES ; SCAFFOLDS
收录类别	SCI
资助信息	Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry; National Natural Science Foundation of China [21275158]; Science and Technology Development Plan of Yantai [2005124]; Innovation Projects of the Chinese Academy of Sciences [KZCX2-EW-206]; 100 Talents Program of the Chinese Academy of Sciences
原文出处	http://dx.doi.org/10.1016/j.aca.2012.08.017
语种	英语
WOS记录号	WOS:000309250800006
公开日期	2013-03-08
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/5993]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室
作者单位	1.YICCAS, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China 2.Marine Environm Monitoring & Forecasting Ctr Yant, Yantai 264003, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Lin, Meng,Hu, Xiaoke,Ma, Zhaohu,et al. Functionalized polypyrrole nanotube arrays as electrochemical biosensor for the determination of copper ions[J]. ANALYTICA CHIMICA ACTA,2012,746(.):63-69.
APA	Lin, Meng,Hu, Xiaoke,Ma, Zhaohu,&Chen, Lingxin.(2012).Functionalized polypyrrole nanotube arrays as electrochemical biosensor for the determination of copper ions.ANALYTICA CHIMICA ACTA,746(.),63-69.
MLA	Lin, Meng,et al."Functionalized polypyrrole nanotube arrays as electrochemical biosensor for the determination of copper ions".ANALYTICA CHIMICA ACTA 746..(2012):63-69.