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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Functionalization of luminescent YVO4:Eu3+ nanoparticles by sol-gel

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Miura, Barbara A. [1] ; Ferreira, Natalia H. [1] ; Oliveira, Pollyanna F. [1] ; de Faria, Emerson H. [1] ; Tavares, Denise C. [1] ; Rocha, Lucas A. [1] ; Ciuffi, Katia J. [1] ; Nassar, Eduardo J. [1]
Total Authors: 8
[1] Univ Franca, BR-14404600 Franca, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Journal of Luminescence; v. 159, p. 93-99, MAR 2015.
Web of Science Citations: 12

Over the last decades, researchers have explored nanotechnological applications in different areas. The non-hydrolytic and hydrolytic sol-gel routes offer the ideal conditions to obtain materials with distinct compositions and multifunctionality, for use in such diverse areas as nanomedicine and technology. In this work, we used the modified hydrolytic sol-gel route to prepare YVO4 doped with Eu3+ ion. The YVO4:Eu3+ nanoparticles were functionalized with 3-chloropropyltriethoxysilane using the hydrolytic sol-gel process; the drug cisplatin was then added to them. The final powder was characterized by thermal analysis, infrared spectroscopy, X-ray diffraction, and photoluminescence. The powder X-ray diffraction patterns of the samples obtained before and after functionalization revealed well defined peaks ascribed to the tetragonal structure of the YVO4 phase. The thermal analysis curves evidenced mass loss relative to 3-chloropropyltriethoxysilane and cisplatin decomposition. Infrared spectroscopy showed the peaks related to the CH and NH groups vibration modes, confirming YVO4 functionalization. The excitation and emission spectrum of the Eu3+ ion did not change upon its doping into the matrix functionalized with 3-chloropropyl and cisplatin. Cytotoxicity tests conducted on normal Chinese hamster (V79 cells) and murine melanoma (B16F10) cells attested that the matrix was not toxic. (C) 2014 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 11/15757-4 - Synthesis and characterization of LaNbO4:Eu3+, Bi3+ doped matrix obtained by spray pyrolysis process
Grantee:Lucas Alonso Rocha
Support type: Regular Research Grants
FAPESP's process: 11/21310-2 - Study of cytotoxic, genotoxic and antioxidant activities of Styrax camporum hydroalcoholic extract and chemical markers, egonol and homoegonol, and their influence on genetic material damage and pre-neoplastic lesions.
Grantee:Pollyanna Francielli de Oliveira
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 11/09823-4 - Use of the europium III to reveal structure of the matrices obtained by sol-gel methodology
Grantee:Eduardo José Nassar
Support type: Regular Research Grants
FAPESP's process: 12/11673-3 - Thin films obtained by spin and dip-coating using sol-gel methodology
Grantee:Eduardo José Nassar
Support type: Regular Research Grants
FAPESP's process: 12/24427-0 - Evaluation of antitumoral activity and toxicological parameters of cisplatin functionalized nanoparticles of yttrium vanadate
Grantee:Natália Helen Ferreira
Support type: Scholarships in Brazil - Master