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Issue 31, 2017
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The aggregation induced emission quenching of graphene quantum dots for visualizing the dynamic invasions of cobalt(II) into living cells

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Abstract

A highly sensitive and selective approach for cobalt(II) detection based on the aggregation induced emission quenching strategy, which is opposite to aggregation induced emission enhancement, was developed using graphene quantum dots (GQDs). The detection could be achieved in the range of 10 nM–5 μM and the limit of detection was 2 nM. Importantly, the as-prepared GQDs showed a specific response to cobalt(II) with excellent stability in A549 cells owing to their good biocompatibility and long-time anti-photobleaching. Thus, these environmentally and bio-friendly carbon nanomaterials were employed to visualize and monitor significant physiological changes of living cells induced by cobalt(II). This shows great potential for in vitro analysis of cobalt(II).

Graphical abstract: The aggregation induced emission quenching of graphene quantum dots for visualizing the dynamic invasions of cobalt(ii) into living cells

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Publication details

The article was received on 14 May 2017, accepted on 14 Jul 2017 and first published on 15 Jul 2017


Article type: Paper
DOI: 10.1039/C7TB01316G
Citation: J. Mater. Chem. B, 2017,5, 6394-6399
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    The aggregation induced emission quenching of graphene quantum dots for visualizing the dynamic invasions of cobalt(II) into living cells

    N. Wang, Z. X. Liu, R. S. Li, H. Z. Zhang, C. Z. Huang and J. Wang, J. Mater. Chem. B, 2017, 5, 6394
    DOI: 10.1039/C7TB01316G

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