Influence of Eu(3+) doping content on antioxidant properties of Lu2O3 sol-gel derived nanoparticles.
This paper presents the synthesis of pure and europium-doped lutetium oxide (Lu2O3) powders prepared by sol-gel method. The influence of europium ion concentration into Lu2O3 nanocrystallites was investigated for first time in an in vitro system using a modified ABTS radical cation decolorization assay to determine the antioxidant activity. The crystalline structure of Lu2O3 and Eu:Lu2O3 powders was elucidated by XRD obtaining cubic phase in all system without secondary products in accordance with FT-IR results. By TEM and Scherrer equation, it was determined that Lu2O3 and Eu:Lu2O3 powders presented nearly spherical particle morphology with crystallites sizes in the range of 8 to 13nm. The antioxidant assays results revealed that europium ion enhance Lu2O3 powders antioxidant properties, showing that 12.5mol% of europium is sufficient to reach its maximum capacity.
Universidad Del Valle de México Campus Lomas Verde, Paseo de las Aves No.1 Col. San Mateo Nopala. Naucalpan de Juárez, Edo. Méx. C.P. 53220, Mexico.
Arturo
A
Olvera Salazar
Tecnológico Nacional de México-Instituto Tecnológico de Ciudad Madero. Av. 1o. de Mayo esq. Sor Juana Inés de la Cruz s/n Col. Los Mangos Cd. Madero Tamaulipas C.P.89440, Mexico. Electronic address: margarita.garcia@itcm.edu.mx.
Margarita
M
García Hernández
Universidad Autónoma Metropolitana, Unidad Cuajimalpa. Av. Vasco de Quiroga 4871, Col. Santa Fé Cuajimalpa, Cuajimalpa D.F. C.P. 05348, Mexico.
Perla Yolanda
PY
López Camacho
Instituto Politécnico Nacional, CICATA Altamira. Carretera Tampico-Puerto Industrial Altamira, Altamira, Tamaulipas C.P. 89600, Mexico.
Arturo
A
López Marure
Tecnológico Nacional de México-Instituto Tecnológico de Ciudad Madero. Av. 1o. de Mayo esq. Sor Juana Inés de la Cruz s/n Col. Los Mangos Cd. Madero Tamaulipas C.P.89440, Mexico.
Adriana Isabel
AI
Reyes de la Torre
Instituto Politécnico Nacional, CIITEC Azcapotzalco. Cerrada de Cecati S/N, Col. Santa Catarina, Azcapotzalco, D.F. C.P. 02250, Mexico.
Ángel de Jesús
Áde J
Morales Ramírez
Instituto Politécnico Nacional, ESIME. Av. de las Granjas 682, Col. Santa Catarina, Azcapotzalco, D.F. C.P. 02250, Mexico.
Felipe
F
Hernández Santiago
Tecnológico Nacional de México-Instituto Tecnológico de Ciudad Madero. Av. 1o. de Mayo esq. Sor Juana Inés de la Cruz s/n Col. Los Mangos Cd. Madero Tamaulipas C.P.89440, Mexico.
Luciano
L
Aguilera Vázquez
D000975:Antioxidants / Q000494:pharmacology*; D005063:Europium / Q000737:chemistry*; D008187:Lutetium / Q000494:pharmacology*; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D010087:Oxides / Q000494:pharmacology*; D044367:Phase Transition; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction
D000975:Antioxidants; D010087:Oxides; D005063:Europium; D008187:Lutetium
ABTS assays; Antioxidant; Europium; Lu(2)O(3); Sol-gel