Influence of Eu3+ doping content on antioxidant properties of Lu2O3 sol-gel derived nanoparticles

被引：9

作者：

Olvera Salazar, Arturo ^{[1
]}

Garcia Hernandez, Margarita ^{[2
]}

Lopez Camacho, Perla Yolanda ^{[3
]}

Lopez Marure, Arturo ^{[4
]}

Reyes de la Torre, Adriana Isabel ^{[2
]}

Morales Ramirez, Angel de Jesus ^{[5
]}

Hernandez Santiago, Felipe ^{[6
]}

Aguilera Vazquez, Luciano ^{[2
]}

机构：

[1] Univ Valle Mexico, Campus Lomas Verde, Naucalpan De Juarez 53220, Edo Mex, Mexico

[2] Inst Tecnol Ciudad Mexico, Tecnol Nacl Mexico, Av 1o Mayo Esq Sor Juana Ines de la Cruz S-N, Madero Tamaulipas 89440, Mexico

[3] Univ Autonoma Metropolitan, Unidad Cuajimalpa, Av Vasco de Quiroga 4871, Cuajimalpa 05348, DF, Mexico

[4] Inst Politecn Nacl, CICATA Altamira, Carretera Tampico Puerto Ind Altamira, Altamira 89600, Tamaulipas, Mexico

[5] Inst Politecn Nacl, CIITEC Azcapotzalco, Cerrada de Cecati S-N, Azcapotzalco 02250, DF, Mexico

[6] Inst Politecn Nacl, ESIME, Av Granjas 682, Azcapotzalco 02250, DF, Mexico

来源：

MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS | 2016年 / 69卷

关键词：

ABTS assays; Sol-gel; Lu2O3; Antioxidant; Europium; OXIDE NANOPARTICLES; SPECTROSCOPIC CHARACTERIZATION; OXYGEN VACANCIES; CERIUM; NANOCRYSTALS; STATE;

D O I：

10.1016/j.msec.2016.07.061

中图分类号：

TB3 [工程材料学]; R318.08 [生物材料学];

学科分类号：

0805 ; 080501 ; 080502 ;

摘要：

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 13 nm. The antioxidant assays results revealed that europium ion enhance Lu2O3 powders antioxidant properties, showing that 12.5 mol% of europium is sufficient to reach its maximum capacity. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：850 / 855

页数：6

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