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Investigation of luminescent mechanism: N-rich corbon dots as the luminescence center of fluorescent Hydroxyapatite prepared by a typical hydrothermal process

Abstract

As no toxic metal ions or photobleaching fluorescent organic dyes involved, the defect-related fluorescent HAp materials are expected to be excellent fluorescent probes in biological field. The lack of in-depth understanding of the luminescent mechanism makes it difficult to adjust their emission performance for better application in bio-imaging. In this study, a novel luminescent mechanism of defect-related HAp fluorescent materials obtained from the typical hydrothermal route was revealed. N-rich carbon dots (CDs) instead of the reported CO[2 with combining dot above] ˉ was confirmed to be the luminescence center and responsible for the self-activated luminescence. The combining way between N-rich CDs and the HAp host might be the CDs (mainly its polymer clusters and/or molecular fluorophores constituents) trapped in the HAp crystal structure. This study gave inspiration to the design of fluorescent HAp with a tunable fluorescence emission due to the diverse synthesis methods and tunable fluorescence emission of CDs.

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Publication details

The article was received on 07 Dec 2016, accepted on 17 Apr 2017 and first published on 18 Apr 2017


Article type: Paper
DOI: 10.1039/C6TB03184F
Citation: J. Mater. Chem. B, 2017, Accepted Manuscript
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    Investigation of luminescent mechanism: N-rich corbon dots as the luminescence center of fluorescent Hydroxyapatite prepared by a typical hydrothermal process

    D. Jiang, H. Zhao, Y. Yang, Y. Zhu, X. Chen, J. Sun, K. Yu, H. Fan and X. Zhang, J. Mater. Chem. B, 2017, Accepted Manuscript , DOI: 10.1039/C6TB03184F

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