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Issue 54, 2017
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Analyte-triggered autocatalytic amplification combined with gold nanoparticle probes for colorimetric detection of heavy-metal ions

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Abstract

This work reports a new colorimetric nanosensor for the detection of heavy-metal ions that initially integrates analyte-triggered autocatalytic amplification with o-phenylenediamine-mediated aggregation of label-free gold nanoparticles. Its utility is well demonstrated with the simple, rapid, sensitive, and specific detection of Hg2+, Cu2+, and Ag+ targets with detection limits less than 3 nM.

Graphical abstract: Analyte-triggered autocatalytic amplification combined with gold nanoparticle probes for colorimetric detection of heavy-metal ions

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Publication details

The article was received on 23 Mar 2017, accepted on 28 Apr 2017 and first published on 28 Apr 2017


Article type: Communication
DOI: 10.1039/C7CC02198D
Citation: Chem. Commun., 2017,53, 7477-7480
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    Analyte-triggered autocatalytic amplification combined with gold nanoparticle probes for colorimetric detection of heavy-metal ions

    J. Yang, Y. Zhang, L. Zhang, H. Wang, J. Nie, Z. Qin, J. Li and W. Xiao, Chem. Commun., 2017, 53, 7477
    DOI: 10.1039/C7CC02198D

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