| Autor: |
Laguna, Mariano, Nuñez, Nuria O., Becerro, Ana I., Lozano, Gabriel, Moros, Maria, de la Fuente, Jesús M, Corral, Ariadna, Balcerzyk, Marcin, Ocañaa, Manuel |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Journal of Colloid and Interface Science, Volume 554, 15 October 2019, Pages 520-530 |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1016/j.jcis.2019.07.031 |
| Popis: |
A one-pot simple procedure for the synthesis of uniform, ellipsoidal Eu3+-doped sodium lanthanum tungstate and molybdate (NaLa(XO4)2, X = W, Mo) nanophosphors, functionalized with carboxylate groups, is described. The method is based on a homogeneous precipitation process at 120 C from appropriate Na+, Ln3+ and tungstate or molybdate precursors dissolved in ethylene glycol/water mixtures containing polyacrylic acid. A comparative study of the luminescent properties of both luminescent materials as a function of the Eu3+ doping level has been performed to find the optimum nanophosphor, whose efficiency as X-ray computed tomography contrast agent is also evaluated and compared with that of a commercial probe. Finally, the cell viability and colloidal stability in physiological pH medium of the optimum samples have also been studied to assess their suitability for biomedical applications. |
| Databáze: |
arXiv |
| Externí odkaz: |
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