Amino acid coupled to Pr3+ doped lanthanum orthophosphate (LaPO4) nanoparticles

Author(s)

Alves, Caroline Cassia ^[1] ; Demoucron, Julien ^[2] ; Caillier, Bruno ^[2] ; Guillot, Philippe ^[2] ; Mauricot, Robert ^[3] ; Dexpert-Ghys, Jeannette ^[3] ; Almeida Caiut, Jose Mauricio ^[1]

Affiliation

^[1] Univ Sao Paulo, Fac Filosofia Ciencias & Letras Ribeirao Preto, Dept Quim, Ribeirao Preto, SP - Brazil

^[2] Ctr Univ JF Champollion, DPHE, F-81012 Albi 9 - France

^[3] CEMES, F-31055 Toulouse 4 - France

• Document type: Journal article
• Source: Materials Letters; v. 137, p. 435-439, DEC 15 2014.
• Web of Science Citations: 4

Abstract

A new support for traditional radiotherapy based on the UV emission from Pr3+ doped LaPO4 nanoparticles is proposed. This system was obtained by spray pyrolysis methodology. X-ray diffraction (XRD) analysis showed that the synthesized particles exhibited a lanthanum orthophosphate structure. Transmission electron microscopy (TEM) revealed that the ultrasound treatment successfully converted the microparticles into nanoparticles. The surfaces were chemically modified with amino acid (asparagine and aminocaproic acid). XEOL measurements evidenced a broad band in the UVC range, which could allow for application of the system as UVC emitter in internal phototherapy. (c) 2014 Elsevier B.V. All rights reserved. (AU)

• FAPESP's process: 11/21551-0 - Bio-compatible luminescent nanoparticles: synthesis, characterization and applications
• Grantee: José Maurício Almeida Caiut
• Support Opportunities: Regular Research Grants