Back to Search
Start Over
Synthesis of Fluorinated and Nonfluorinated Graphene Quantum Dots through a New Top-Down Strategy for Long-Time Cellular Imaging.
- Source :
-
Chemistry - A European Journal . Feb2015, Vol. 21 Issue 9, p3791-3797. 7p. - Publication Year :
- 2015
-
Abstract
- Herein, a new strategy has been developed through combining a microwave-assisted technique with hydrothermal treatment to reduce graphene waste and improve production yield of graphene quantum dots (GQDs) prepared by top-down methods. By using fluorinated graphene oxide (FGO) as a raw material, fluorinated GQDs and nonfluorinated GQDs can be synthesized. Additionally, in the fluorinated GQDs, the protective shell supplied by fluorine improves the pH stability of photoluminescence and the strong electron-withdrawing group, F, reduces the π- electron density of the aromatic structure; thus inhibiting reactivity toward singlet oxygen produced during irradiation and improving the photostability. Therefore, the as-prepared fluorinated GQDs with excellent photo- and pH stability are suitable for long-term cellular imaging. [ABSTRACT FROM AUTHOR]
- Subjects :
- *GRAPHITE fluorides
*QUANTUM dots
*GRAPHENE oxide
*CELL imaging
*PHOTOLUMINESCENCE
Subjects
Details
- Language :
- English
- ISSN :
- 09476539
- Volume :
- 21
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Chemistry - A European Journal
- Publication Type :
- Academic Journal
- Accession number :
- 101005573
- Full Text :
- https://doi.org/10.1002/chem.201406345