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Synthesis of multi-functional green fluorescence carbon dots and their applications as a fluorescent probe for Hg2+ detection and zebrafish imaging.

Authors :
Xu, Quan
Zhang, Miaoran
Liu, Yao
Cai, Wei
Yang, Wenjing
He, Ziying
Sun, Xiuli
Luo, Yan
Liu, Fang
Source :
New Journal of Chemistry; 6/21/2018, Vol. 42 Issue 12, p10400-10405, 6p
Publication Year :
2018

Abstract

Heteroatom doped carbon dots, due to their excellent fluorescence properties and potential applications in the biological and photo-electronic industry, have attracted great attention recently. In this work, we reported a single-step synthesis of nitrogen carbon dots (N-CDs) using a simple and straightforward hydrothermal method. The luminescence properties of the synthesized N-CDs were correlated with the precursor ratio (aniline and ethylenediamine ratio of (1 : 5) in CDs). To further investigate the fluorescence properties and related mechanisms of N-CDs, different characterization techniques were applied, including fluorescence spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy, and X-ray photoelectron spectroscopy (XPS). In addition, the as-prepared N-CDs exhibit strong emission at 510 nm when excited at 410 nm, and emit bright green fluorescence under 365 nm UV radiation. N-CDs exhibited a strong selectivity for Hg<superscript>2+</superscript> in the range of 0–70 μM, and can be used for the rapid detection of Hg<superscript>2+</superscript> in biomedical applications. The sample of N-CDs as a probe was used for fluorescence bioimaging of zebrafish, validating the potential of N-CDs as a probe in bioimaging applications. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
11440546
Volume :
42
Issue :
12
Database :
Complementary Index
Journal :
New Journal of Chemistry
Publication Type :
Academic Journal
Accession number :
130097832
Full Text :
https://doi.org/10.1039/c8nj01639a