期刊
NANOSCALE RESEARCH LETTERS
卷 13, 期 -, 页码 -出版社
SPRINGEROPEN
DOI: 10.1186/s11671-018-2581-7
关键词
Carbon quantum dot; Photoluminescence; Lemon juice; Cell imaging
资金
- National Natural Science Foundation of China [U1402273, 11364045, 11574319, 11664044]
- Department of Science and Technology of Yunnan Province [2016FC001]
- Yunnan University [2016MS14]
The water-soluble fluorescent carbon quantum dots (CQDs) are synthesized by utilizing lemon juice as carbon resource via a simple hydrothermal reaction. The obtained CQDs are with an average size of 3.1 nm. They reveal uniform morphology and well-crystalline and can generate bright blue-green light emission under UV or blue light irradiation. We find that the fluorescence from these CQDs is mainly induced by the presence of oxygen-containing groups on the surface and edge of the CQDs. Moreover, we demonstrate that the as-prepared CQDs can be applied to imaging plant cells. This study is related to the fabrication, investigation, and application of newly developed carbon nanostructures.
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