Preparation of carbon dots with orange emission for Cr(Ш) detection and cellular imaging | Zendy

Si Junying | Zendy; Wang Hong | Zendy; Wu Baoshuang | Zendy; Wang Guangshuo | Zendy; Yang Jiajia | Zendy; Huo Zhongchao | Zendy; Tian Tian | Zendy; Zhao Xuelin | Zendy; Han Shuai | Zendy

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Preparation of carbon dots with orange emission for Cr(Ш) detection and cellular imaging

Author(s) -

Si Junying,

Wang Hong,

Wu Baoshuang,

Wang Guangshuo,

Yang Jiajia,

Huo Zhongchao,

Tian Tian,

Zhao Xuelin,

Han Shuai

Publication year - 2021

Publication title -

micro and nano letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.25

H-Index - 31

ISSN - 1750-0443

DOI - 10.1049/mna2.12009

Subject(s) - orange (colour) , agent orange , nanotechnology , materials science , chemistry , food science , archaeology , history

A new type of orange emission carbon dots (OCDs) was prepared by hydrothermal method using 1,2,4‐triaminobenzene and p‐aminobenzenesulphonic acid as precursors. TEM characterization showed that the new OCDs were uniform in size with an average particle size of 4–7 nm. Infrared spectroscopy and XPS analysis showed that the surface of the OCDs were rich in hydrophilic functional groups. Fluorescence spectroscopy results showed that the obtained OCDs exhibited excellent fluorescence with an absolute quantum yield as high as 14.9%. The OCDs were further applied to the detection of metal ions. It was found that the fluorescence of OCDs could be effectively quenched by Cr(Ш) with a detection limit of 0.38 μ m . Notably, the obtained OCDs have been successfully used for fluorescence detection of Cr 3+ ions in cell level.

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