Issue 1, 2012
From the journal:

Analyst

A novel route to copper(ii) detection using ‘click’ chemistry-induced aggregation of gold nanoparticles

Carol Hua,a   William H. Zhang,a   Swahnnya R. M. De Almeida,a   Simone Ciampi,a   Danmar Gloria,a   Guozhen Liu,a   Jason B. Harpera  and  J. Justin Gooding*a  

* Corresponding authors

a School of Chemistry, The University of New South Wales, Sydney, NSW, Australia
E-mail: justin.gooding@unsw.edu.au
Fax: +61-2-9385 5384
Tel: +61-2-9385 6141

Abstract

A simple colorimetric method for the detection of copper ions in water is described. This method is based on the ‘click’ copper(I)-catalyzed azide-alkyne cycloaddition reaction and its use in promoting the aggregation of azide-tagged gold nanoparticles by a dialkyne cross-linker is described. Nanoparticle cross-linking, evidenced as a colour change, is used for the detection of copper ions. The lowest detected concentration by the naked eye was 1.8 μM, with the response linear with log(concentration) between 1.8–200 μM. The selectivity relative to other potentially interfering ions was evaluated.

Graphical abstract: A novel route to copper(ii) detection using ‘click’ chemistry-induced aggregation of gold nanoparticles

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Article information

DOI
https://doi.org/10.1039/C1AN15693D
Article type
Paper
Submitted
02 Aug 2011
Accepted
14 Sep 2011
First published
06 Oct 2011

Analyst, 2012,137, 82-86

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A novel route to copper(II) detection using ‘click’ chemistry-induced aggregation of gold nanoparticles

C. Hua, W. H. Zhang, S. R. M. De Almeida, S. Ciampi, D. Gloria, G. Liu, J. B. Harper and J. J. Gooding, Analyst, 2012, 137, 82 DOI: 10.1039/C1AN15693D

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