Fluorescently tuned nitrogen-doped carbon dots from carbon source with different content of carboxyl groups | Zendy

Hao Wang | Zendy; Peng Gao | Zendy; Yun Wang | Zendy; Jun Guo | Zendy; KeQin Zhang | Zendy; Dezhuang Du | Zendy; Xiao Dai | Zendy; Guifu Zou | Zendy

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Fluorescently tuned nitrogen-doped carbon dots from carbon source with different content of carboxyl groups

Author(s) -

Hao Wang,

Peng Gao,

Yun Wang,

Jun Guo,

KeQin Zhang,

Dezhuang Du,

Xiao Dai,

Guifu Zou

Publication year - 2015

Publication title -

apl materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.571

H-Index - 60

ISSN - 2166-532X

DOI - 10.1063/1.4928028

Subject(s) - biocompatibility , conjugate , fluorescence , carbon fibers , nitrogen , cytotoxicity , materials science , carbon source , doping , nanotechnology , nuclear chemistry , chemical engineering , combinatorial chemistry , organic chemistry , chemistry , biochemistry , in vitro , optoelectronics , composite number , composite material , metallurgy , mathematical analysis , physics , mathematics , quantum mechanics , engineering

In this study, fluorescent nitrogen-doped carbon dots (NCDs) were tuned via varying the sources with different number of carboxyl groups. Owing to the interaction between amino and carboxyl, more amino groups conjugate the surface of the NCDs by the source with more carboxyl groups. Fluorescent NCDs were tuned via varying the sources with different content of carboxyl groups. Correspondingly, the nitrogen content, fluorescence quantum yields and lifetime of NCDs increases with the content of carboxyl groups from the source. Furthermore, cytotoxicity assay and cell imaging test indicate that the resultant NCDs possess low cytotoxicity and excellent biocompatibility

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