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

Carol Hua; William H. Zhang; Swahnnya R M De Almeida; Simone Ciampi; Danmar Gloria; Guozhen Liu; Jason B. Harper; J. Justin Gooding

doi:10.1039/c1an15693d

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

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

80 Citations (Scopus)

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.

Original language	English
Pages (from-to)	82-86
Number of pages	5
Journal	Analyst
Volume	137
Issue number	1
DOIs	https://doi.org/10.1039/c1an15693d
Publication status	Published - 7 Jan 2012
Externally published	Yes

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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.",

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AU - Ciampi, Simone

AU - Gloria, Danmar

AU - Liu, Guozhen

AU - Harper, Jason B.

AU - Gooding, J. Justin

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AB - 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.

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VL - 137

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

Abstract

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