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

    Access Status
    Fulltext not available
    Authors
    Hua, C.
    Zhang, W.
    De Almeida, S.
    Ciampi, Simone
    Gloria, D.
    Liu, G.
    Harper, J.
    Gooding, J.
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Hua, C. and Zhang, W. and De Almeida, S. and Ciampi, S. and Gloria, D. and Liu, G. and Harper, J. et al. 2012. A novel route to copper(ii) detection using 'click' chemistry-induced aggregation of gold nanoparticles. Analyst. 137 (1): pp. 82-86.
    Source Title
    Analyst
    DOI
    10.1039/c1an15693d
    ISSN
    0003-2654
    School
    Nanochemistry Research Institute
    URI
    http://hdl.handle.net/20.500.11937/26098
    Collection
    • Curtin Research Publications
    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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