TY - JOUR
T1 - Influence of Eu3 + doping content on antioxidant properties of Lu2O3 sol-gel derived nanoparticles
AU - Olvera Salazar, Arturo
AU - García Hernández, Margarita
AU - López Camacho, Perla Yolanda
AU - López Marure, Arturo
AU - Reyes de la Torre, Adriana Isabel
AU - Morales Ramírez, Ángel de Jesús
AU - Hernández Santiago, Felipe
AU - Aguilera Vázquez, Luciano
N1 - Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2016/12/1
Y1 - 2016/12/1
N2 - 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.
AB - 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.
KW - ABTS assays
KW - Antioxidant
KW - Europium
KW - LuO
KW - Sol-gel
UR - http://www.scopus.com/inward/record.url?scp=84979730692&partnerID=8YFLogxK
U2 - 10.1016/j.msec.2016.07.061
DO - 10.1016/j.msec.2016.07.061
M3 - Artículo
C2 - 27612779
SN - 0928-4931
VL - 69
SP - 850
EP - 855
JO - Materials Science and Engineering C
JF - Materials Science and Engineering C
ER -