期刊
MICROCHIMICA ACTA
卷 183, 期 2, 页码 821-826出版社
SPRINGER WIEN
DOI: 10.1007/s00604-015-1714-2
关键词
Toxicity; MTT assay; HeLa cells; Bioimaging; Quantum yield; Decay time; High-resolution TEM
资金
- National Natural Science Foundation of China [21275130, 21475118, 21175118]
Nitrogen and phosphorus co-doped carbon dots (N,P-C-dots) were prepared by microwave-assisted thermolysis of N-phosphonomethyl aminodiacetic acid and ethylenediamine. N,P-C-dots exhibit bright blue fluorescence with an emission maximum at 418 nm. Experimental results show that they have uniform dispersion with the average size of 3.3 nm, a fluorescence decay time of 7.8 ns, a quantum yield of 17.5 %, low toxicity, and good stability. All these make them an excellent choice as a fluorescent nanomaterial for use in cellular imaging.
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