期刊
JOURNAL OF MATERIALS CHEMISTRY B
卷 1, 期 3, 页码 330-338出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2tb00045h
关键词
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资金
- National Science Foundation for Distinguished Young Scholars [50925206]
- Fundamental Research Funds for the Central Universities [lzujbky-2012-211]
In this paper, size-controlled morphologies of (Y, Gd)VO4 and (Y, Gd)VO4:Ln(3+) (Ln = Eu, Yb, Er, and Ho) were obtained via a facile hydrothermal route, and their properties for drug delivery and photoluminescence were investigated. Monodisperse ellipsoid-like hollow (Y, Gd)VO4 were designed by employing (Y, Gd)(OH)CO3 colloidal spheres as a sacrificial template and NH4VO3 as a vanadium source, and the formation mechanism could be interpreted by the Kirkendall effect. The control of particle size for hollow (Y, Gd)VO4 was realized, facilitating their practical application. Mesoporous core-shell structured (Y, Gd)VO4:Ln(3+)@nSiO(2)@mSiO(2) were designed to improve the properties for drug release. Typically, red emission of YVO4:Eu3+ predominated under 465 nm excitation; the upconversion spectra of YVO4:Yb3+, Er3+ and YVO4:Yb3+, Ho3+ revealed green and red color upon 980 nm excitation, respectively. The biocompatibility and drug release evaluations indicate the potential biological applications of the samples.
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