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

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 with 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 specific response to cobalt (II) with excellent stability in A549 cells owing to the good biocompatibility and long-time anti-photobleaching. Thus, the environmentally and bio-friendly carbon nanomaterial was employed to visualize and monitor the significant physiological changes of living cells induced by cobalt (II). This shows great protential for in vitro analysis of cobalt (II).

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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, Accepted Manuscript
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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, Accepted Manuscript , DOI: 10.1039/C7TB01316G

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