期刊
CHEMISTRYSELECT
卷 1, 期 7, 页码 1314-1317出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.201600216
关键词
Carbon Dots; Cellulose; Photoluminescence; Bioimaging; Quantum Yield
资金
- National Natural Science Foundation of China [51372226, 51402261]
- Science Foundation of Zhejiang Sci-Tech University (ZSTU) [13012138]
- public technology research plan of Zhejiang Province, China [2014C33041]
- Zhejiang Provincial Top Key Academic Discipline of Textile Science and Engineering
- Open Fund of Top priority disciplines in colleges and universities in Zhejiang Province, China [2015KF20]
Photoluminescent carbon dots (CDs) as a novel carbon-based material have attracted much more attention. Here, we reported the synthesis of cellulose-based carbon dots by a facile and highly reproducible new rote from cellulose and urea. The as-obtained CDs were characterized via FTIR, XPS, TEM, UV-vis and PL spectra. The as-obtained CDs showed high nitrogen content, stable and excitation-independent blue-green photo-luminesce. The quantum yield (QY) of the synthesized CDs is up to 21.7%. Furthermore, the low cytotoxicity and great bio-compatibility of CDs were proved via CCK-8 assay and fluorescence bioimaging. The results indicate that the cellulose-based CDs show promising applications for bioimaging in living cell systems.
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