Rapid and highly sensitive detection of mercury ions using a fluorescence-based paper test strip with an N-alkylaminopyrazole ligand as a receptor

被引：44
|
作者：
Aragay, Gemma [1 ]
Monton, Helena [1 ]
Pons, Josefina [2 ]
Font-Bardia, Merce [3 ]
Merkoci, Arben [1 ,4 ]
机构：
[1] Catalan Inst Nanotechnol, Nanobioelect & Biosensors Grp, Bellaterra 08193, Barcelona, Spain
[2] Univ Autonoma Barcelona, Dept Chem, E-08193 Barcelona, Spain
[3] Univ Barcelona, Unitat Difraccio RX, E-08028 Barcelona, Spain
[4] ICREA, Barcelona, Spain
来源：
JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 13期
关键词：
COLORIMETRIC DETECTION; COORDINATION-COMPOUNDS; SELECTIVE DETECTION; BIDENTATE-NN'; ELECTRODES; SENSORS; HG2+; NANOPARTICLES; CHEMOSENSORS; BIOSENSOR;
D O I：
10.1039/c2jm15717a
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Easy-to-synthesize N-alkylaminopyrazole ligands are used in a proof-of-concept fluorescent sensor that can operate as a simple 'paper test' for rapid and highly sensitive mercury detection in water. A significant enhancement of fluorescence emission in aqueous media for the Hg2+ detection at concentrations lower than 0.1 ppb is achieved. A linear range from 10 to 100 ppb [Hg2+] was obtained in the paper-based system. The respective Turn-ON and Turn-OFF fluorescence mechanisms in the paper test and water solution (pH 1) systems are also shown.
引用
收藏
页码：5978 / 5983
页数：6
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