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Controllable synthesis of NH4Eu3F10 nanospheres and application in bioimaging.
- Source :
- CrystEngComm; 2014, Vol. 16 Issue 7, p1296-1303, 8p
- Publication Year :
- 2014
-
Abstract
- Cubic phase NH<subscript>4</subscript>Eu<subscript>3</subscript>F<subscript>10</subscript> nanospheres with controllable sizes were synthesized via a modified hydrothermal route by varying the dosage of ammonium hydroxide solution. Dependence of structure and morphology on the dosage of ammonia water and reaction time were investigated by X-ray powder diffraction (XRD) and transmission electron microscopy (TEM). Being unstable, NH<subscript>4</subscript>Eu<subscript>3</subscript>F<subscript>10</subscript> decomposed into EuF<subscript>3</subscript> and NH<subscript>4</subscript>F during the long-time hydrothermal treatment. EDTA, as the chelation agent of Eu<superscript>3+</superscript> and the capping ligand on the surface of as-obtained nanospheres, showed different chelating abilities depending on the dosage of ammonium hydroxide solution. Increasing the amount of ammonia not only decreased the effective concentration of Eu<superscript>3+</superscript>, but also decelerated the growth of NH<subscript>4</subscript>Eu<subscript>3</subscript>F<subscript>10</subscript> nanospheres and stabilized them by reducing the surface energy. Given the satisfactory hydrophilicity, biocompatibility, and luminescence, the as-obtained nanospheres were applied as promising agents for cell imaging by presenting high contrast. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14668033
- Volume :
- 16
- Issue :
- 7
- Database :
- Complementary Index
- Journal :
- CrystEngComm
- Publication Type :
- Academic Journal
- Accession number :
- 100097571
- Full Text :
- https://doi.org/10.1039/c3ce42193g