Sequential Recognition of Zinc and Pyrophosphate Ions in a Terpyridine-Functionalized Single Nanochannel

	Sequential Recognition of Zinc and Pyrophosphate Ions in a Terpyridine-Functionalized Single Nanochannel
	Zhang, Yuqi 1,2; Zhou, Ru 1,2; Zhao, Zhiju 3; Kong, Xiang-Yu 1; Xie, Ganhua 4; Liu, Qian 3; Li, Pei 5; Zhang, Zhen 4; Xiao, Kai 4; Liu, Zhengping 3
刊名	CHEMPHYSCHEM
	2017
卷号	18 期号:2 页码:253-259
关键词	Asymmetric Nanochannels Chemical Functionalization Pyrophosphate Recognition Zinc
英文摘要	A highly selective recognition system for zinc(II) and pyrophosphate ions is constructed using a single conical nanochannel covalently functionalized with N-{4-[(2,2:6,2-terpyridine)-4-yl]benzyl}ethane-1,2-diamine (TPYD). The immobilized TPYD acts as a specific coordination site for Zn2+ to form TPYD-Zn2+ complexes in preference over other metal ions, and subsequently, the resulting Zn2+-coordinated nanochannel can be used as a selective recognition element for the pyrophosphate ion based on the coordination reaction between hydroxyl oxygen atoms of pyrophosphate and Zn2+. Ion recognition is monitored by measuring the current-voltage curves of the solutions. The ionic current of the TPYD-functionalized system at -2.0V undergoes a clear decrease after exposure to Zn2+ ions and is followed with an obvious increase after subsequent treatment with a pyrophosphate solution. The change of ionic current can be primarily attributed to the variation of charge density of the nanochannel. This functionalized single nanochannel might provide a simple and universal means to recognize other targets by modifying different functional molecules onto the inner surfaces of nanochannels.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/37937]
专题	化学研究所_绿色印刷实验室
作者单位	1.Chinese Acad Sci, Key Lab Bioinspired Mat & Interfacial Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China 2.Yanan Univ, Coll Chem & Chem Engn, Shaanxi Key Lab Chem React Engn, Yanan 716000, Shaanxi, Peoples R China 3.Beijing Normal Univ, Beijing Key Lab Energy Convers & Storage Mat, Key Lab Theoret & Computat Photochem, Coll Chem,Minist Educ, Beijing 100875, Peoples R China 4.Chinese Acad Sci, Inst Chem, Key Lab Green Printing, Beijing 100190, Peoples R China 5.Beihang Univ, Sch Chem & Environm, Key Lab Bioinspired Smart Interfacial Sci & Techn, Minist Educ, Beijing 100191, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yuqi,Zhou, Ru,Zhao, Zhiju,et al. Sequential Recognition of Zinc and Pyrophosphate Ions in a Terpyridine-Functionalized Single Nanochannel[J]. CHEMPHYSCHEM,2017,18(2):253-259.
APA	Zhang, Yuqi.,Zhou, Ru.,Zhao, Zhiju.,Kong, Xiang-Yu.,Xie, Ganhua.,...&Jiang, Lei.(2017).Sequential Recognition of Zinc and Pyrophosphate Ions in a Terpyridine-Functionalized Single Nanochannel.CHEMPHYSCHEM,18(2),253-259.
MLA	Zhang, Yuqi,et al."Sequential Recognition of Zinc and Pyrophosphate Ions in a Terpyridine-Functionalized Single Nanochannel".CHEMPHYSCHEM 18.2(2017):253-259.