Striped, bioactive Ce-TiO2 materials with peroxynitrite- scavenging activity

Controlling aligned fiber micro-architectures to simulate the extracellular matrix for inducing important biological functions is a key challenge with regard to successful tissue regeneration. Here we present a bottom-up microemulsion-mediated strategy to obtain highly bioactive and biocompatible, s...

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Detalles Bibliográficos
Publicado: 2014
Materias:
Anatase nanoparticles
Biological functions
Extracellular matrices
Hydroxyapatite layers
Material surface
Material synthesis
Micro architectures
Scavenging activities
Biocompatibility
Elasticity
Microemulsions
Oxide minerals
Synthesis (chemical)
Titanium dioxide
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20507518_v2_n7_p834_Gravina
http://hdl.handle.net/20.500.12110/paper_20507518_v2_n7_p834_Gravina
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_20507518_v2_n7_p834_Gravina
record_format dspace
spelling paper:paper_20507518_v2_n7_p834_Gravina2023-06-08T16:33:53Z Striped, bioactive Ce-TiO2 materials with peroxynitrite- scavenging activity Anatase nanoparticles Biological functions Extracellular matrices Hydroxyapatite layers Material surface Material synthesis Micro architectures Scavenging activities Biocompatibility Elasticity Microemulsions Oxide minerals Synthesis (chemical) Titanium dioxide Controlling aligned fiber micro-architectures to simulate the extracellular matrix for inducing important biological functions is a key challenge with regard to successful tissue regeneration. Here we present a bottom-up microemulsion-mediated strategy to obtain highly bioactive and biocompatible, striped Ce-TiO2 nano-crystalline superstructures with ONOO - scavenging activity. The employment of a bulkier organic ceria precursor in the material synthesis has several concurrent effects: (I) influencing the interfacial microemulsion droplet elasticity to create an aligned distribution of prismatic anatase nanoparticles causing the final lined morphology, (II) stabilizing the anatase active phase in a fine dispersed state and improving its resistance to the thermal anatase-rutile conversion, (III) indirectly favoring the rapid formation on the material surface of a hydroxyapatite layer composed of sphere-like globules of 3-5 μm in diameter essential for bone-bonding, and finally (IV) accelerating the ONOO- degradation into less harmful species NO2- and O 2. © The 2014 Royal Society of Chemistry. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20507518_v2_n7_p834_Gravina http://hdl.handle.net/20.500.12110/paper_20507518_v2_n7_p834_Gravina
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Anatase nanoparticles
Biological functions
Extracellular matrices
Hydroxyapatite layers
Material surface
Material synthesis
Micro architectures
Scavenging activities
Biocompatibility
Elasticity
Microemulsions
Oxide minerals
Synthesis (chemical)
Titanium dioxide
spellingShingle Anatase nanoparticles
Biological functions
Extracellular matrices
Hydroxyapatite layers
Material surface
Material synthesis
Micro architectures
Scavenging activities
Biocompatibility
Elasticity
Microemulsions
Oxide minerals
Synthesis (chemical)
Titanium dioxide
Striped, bioactive Ce-TiO2 materials with peroxynitrite- scavenging activity
topic_facet Anatase nanoparticles
Biological functions
Extracellular matrices
Hydroxyapatite layers
Material surface
Material synthesis
Micro architectures
Scavenging activities
Biocompatibility
Elasticity
Microemulsions
Oxide minerals
Synthesis (chemical)
Titanium dioxide
description Controlling aligned fiber micro-architectures to simulate the extracellular matrix for inducing important biological functions is a key challenge with regard to successful tissue regeneration. Here we present a bottom-up microemulsion-mediated strategy to obtain highly bioactive and biocompatible, striped Ce-TiO2 nano-crystalline superstructures with ONOO - scavenging activity. The employment of a bulkier organic ceria precursor in the material synthesis has several concurrent effects: (I) influencing the interfacial microemulsion droplet elasticity to create an aligned distribution of prismatic anatase nanoparticles causing the final lined morphology, (II) stabilizing the anatase active phase in a fine dispersed state and improving its resistance to the thermal anatase-rutile conversion, (III) indirectly favoring the rapid formation on the material surface of a hydroxyapatite layer composed of sphere-like globules of 3-5 μm in diameter essential for bone-bonding, and finally (IV) accelerating the ONOO- degradation into less harmful species NO2- and O 2. © The 2014 Royal Society of Chemistry.
title Striped, bioactive Ce-TiO2 materials with peroxynitrite- scavenging activity
title_short Striped, bioactive Ce-TiO2 materials with peroxynitrite- scavenging activity
title_full Striped, bioactive Ce-TiO2 materials with peroxynitrite- scavenging activity
title_fullStr Striped, bioactive Ce-TiO2 materials with peroxynitrite- scavenging activity
title_full_unstemmed Striped, bioactive Ce-TiO2 materials with peroxynitrite- scavenging activity
title_sort striped, bioactive ce-tio2 materials with peroxynitrite- scavenging activity
publishDate 2014
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20507518_v2_n7_p834_Gravina
http://hdl.handle.net/20.500.12110/paper_20507518_v2_n7_p834_Gravina
_version_ 1768545713884495872

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