文献类型：期刊文献

英文题名：Ultrasensitive determination of mercury(II) using glass nanopores functionalized with macrocyclic dioxotetraamines

作者：Gao, Rui[1,2];Ying, Yi-Lun[1,2];Yan, Bing-Yong[3];Iqbal, Parvez[4];Preece, Jon A.[4];Wu, Xinyan[1,2]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Sch Informat Sci & Engn, Shanghai 200237, Peoples R China;[4]Univ Birmingham, Sch Chem, Birmingham B15 2TT, W Midlands, England

年份：2016

卷号：183

期号：1

起止页码：491

外文期刊名：MICROCHIMICA ACTA

收录：;EI(收录号：20242616445912);WOS:【SCI-EXPANDED(收录号:WOS:000367692900056)】；

基金：This work was supported by the National Natural Science Foundation of China (21327807 and 51407078). Y.-L. Ying is supported by the 57rd Chinese Post-doctor Fund (2015 M570336), and B.-Y. Yan is supported by the Fundamental Research Funds for the Central Universities (WH1514049).

语种：英文

外文关键词：Glass nanopores; Mercury(II) detection; Macrocyclic dioxotetraamines; Ion current rectification

摘要：Glass conical nanopores functionalized with a macrocyclic dioxotetraamine derivative (C5) are shown to enable ultrasensitive determination of Hg(II). A complex is formed between Hg(II) and C5, and this converts the functionalized glass nanopore from a rectifying state to a non-rectifying state. The presence of Hg(II) in similar to 10 pM levels or higher can be detected by measuring the ion current rectification ratio in voltage range of +/- 500 mV. This sensing strategy opens new possibilities for development of a simple, portable and convenient device for the quantitation of Hg(II) with very low limits of detection.