期刊
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
卷 9, 期 -, 页码 137-145出版社
BEILSTEIN-INSTITUT
DOI: 10.3762/bjnano.9.16
关键词
bioimaging; carbon nanodots; collaborative reduction; hydrothermal
资金
- Natural Science Foundation of Zhejiang Province [LY15C040002]
- Science Foundation Ireland [13/CDA/2122]
A simple and straightforward synthetic approach for carbon nanodots (C-dots) is proposed. The strategy is based on a one-step hydrothermal chemical reduction with thiourea and urea, leading to high quantum yield C-dots. The obtained C-dots are well-dispersed with a uniform size and a graphite-like structure. A synergistic reduction mechanism was investigated using Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The findings show that using both thiourea and urea during the one-pot synthesis enhances the luminescence of the generated C-dots. Moreover, the prepared C-dots have a high distribution of functional groups on their surface. In this work, C-dots proved to be a suitable nanomaterial for imaging of bacteria and exhibit potential for application in bioimaging thanks to their low cytotoxicity.
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