Issue 13, 2012
From the journal:

Journal of Materials Chemistry

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

Gemma Aragay,a   Helena Montón,a   Josefina Pons,b   Mercè Font-Bardíac  and  Arben Merkoçi*ad  

* Corresponding authors

a Nanobioelectronics & Biosensors Group, Catalan Institute of Nanotechnology, Campus de la UAB, 08193 Bellaterra (Barcelona), Spain
E-mail: arben.merkoci@icn.cat

b Chemistry Department, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain

c Cristal·lografia, Mineralogia i Dipòsits Minerals & Unitat de difracció de RX, Universitat de Barcelona, Martí i Franquès s/n, Barcelona, Spain

d ICREA, Barcelona, Spain

Abstract

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.

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

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Article information

DOI
https://doi.org/10.1039/C2JM15717A
Article type
Paper
Submitted
07 Nov 2011
Accepted
10 Jan 2012
First published
15 Feb 2012

J. Mater. Chem., 2012,22, 5978-5983

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

G. Aragay, H. Montón, J. Pons, M. Font-Bardía and A. Merkoçi, J. Mater. Chem., 2012, 22, 5978 DOI: 10.1039/C2JM15717A

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