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：45

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

页码：5978 / 5983

页数：6

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