Bioactivity Assessment of Niobate Apatite

Daniel Navarro da Rocha; Leila Rosa de Oliveira Cruz; Luciano de Andrade Gobbo; Marcelo Henrique Prado da Silva

doi:10.4028/www.scientific.net/KEM.614.3

Paper Titles

Preface, Committees, Symposia, Acknowledgements and Support

Bioactivity Assessment of Niobate Apatite
p.3

Bioactivity of a Poly(70lactic-co-30glycolic acid)/15CaO-85SiO₂ Composite with a Dual Pore Structure
p.7

The Influence of Biogenic and Synthetic Starting Materials on the Properties of Porous Hydroxyapatite Bioceramics
p.11

Biocompatible Porous Scaffolds from Derivatized PVA Composites
p.17

Biomimetic Apatite Deposition within Casein-Loaded Hydrogel Scaffolds
p.22

Comparison between the Microstructure of the Mineral Phase in Two Types of Composite Beads for Bone Regeneration
p.26

Effect of Silicon-Doped Calcium Phosphate Bone Substitutes on Bone Formation and Osteoblastic Phenotype Expression In Vivo
p.31

Influence of Time on Thermal Oxidation of CP-Ti Grade II at 850 °C
p.35

HomeKey Engineering MaterialsKey Engineering Materials Vol. 614Bioactivity Assessment of Niobate Apatite

Bioactivity Assessment of Niobate Apatite

Abstract:

Hydroxyapatite is a bioceramic material of great interest for use as bone substitute because of its similarity with the composition of biological apatite. Cationic and anionic substitutions in the apatite structure have been made in order to optimize the synthesis and accelerate the process of bone repair. In the present study, niobate apatite was synthesized by a patented aqueous precipitation method. The bioactivity of the samples was assessed by X-ray diffraction analyses (XRD), energy dispersive X-ray spectroscopy (EDS) and scanning electron microscopy with field emission gun (FEG-SEM; FEI Quanta FEG 250) in the samples before and after an incubation period in simulated body fluid. The results showed that after 3 days a bone-like apatite coating was formed onto the niobate apatite surface. A peculiar morphology comprised by nanosized wires was also observed on the niobate apatite surface.

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Key Engineering Materials (Volume 614)

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3-6

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.614.3

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Online since:

June 2014

Authors:

Daniel Navarro da Rocha, Leila Rosa de Oliveira Cruz, Luciano de Andrade Gobbo, Marcelo Henrique Prado da Silva

Keywords:

Apatite, Bioactivity, Hydroxyapatite (HA), Niobate, SBF

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