Synthesis of Ca,Y-zirconia/hydroxyapatite nanoparticles and composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F16%3A00465574" target="_blank" >RIV/68081723:_____/16:00465574 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26620/16:PU117652

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2015.12.045" target="_blank" >http://dx.doi.org/10.1016/j.jeurceramsoc.2015.12.045</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2015.12.045" target="_blank" >10.1016/j.jeurceramsoc.2015.12.045</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Synthesis of Ca,Y-zirconia/hydroxyapatite nanoparticles and composites

Popis výsledku v původním jazyce

Zirconia/hydroxyapatite composites were prepared by mixing hydroxyapatite (HA) and ZrO2 nanoparticles were prepared by precipitation synthesis. Nanoparticle composites with microporous structure and with a grain size of up to 10 m and a density of 94% were obtained. Due to the diffusion of Ca ions from HA to ZrO2, phase transformations took place in the composites during sintering. HA decomposed into a mixture of HA and calcium phosphates and simultaneously calcium zirconate was formed. Hardness and modulus of elasticity decreased with increasing porosity of the ZrO2/HA composites. The Ca-ZrO2/HA composites showed a higher bioactivity in simulated body fluid (SBF) testing than those of Y-ZrO2/HA. The osteoblast cells adhered more extensively to the Ca-ZrO2/HA composites than to the Y-ZrO2/HA ones. The effect of the microstructure and the chemical composition has the mechanical and biological properties could be used to optimize the mechanical and biological acceptability of the composites in bone repairs.

Název v anglickém jazyce

Synthesis of Ca,Y-zirconia/hydroxyapatite nanoparticles and composites

Popis výsledku anglicky

Zirconia/hydroxyapatite composites were prepared by mixing hydroxyapatite (HA) and ZrO2 nanoparticles were prepared by precipitation synthesis. Nanoparticle composites with microporous structure and with a grain size of up to 10 m and a density of 94% were obtained. Due to the diffusion of Ca ions from HA to ZrO2, phase transformations took place in the composites during sintering. HA decomposed into a mixture of HA and calcium phosphates and simultaneously calcium zirconate was formed. Hardness and modulus of elasticity decreased with increasing porosity of the ZrO2/HA composites. The Ca-ZrO2/HA composites showed a higher bioactivity in simulated body fluid (SBF) testing than those of Y-ZrO2/HA. The osteoblast cells adhered more extensively to the Ca-ZrO2/HA composites than to the Y-ZrO2/HA ones. The effect of the microstructure and the chemical composition has the mechanical and biological properties could be used to optimize the mechanical and biological acceptability of the composites in bone repairs.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of the European Ceramic Society

ISSN

0955-2219

e-ISSN

—

Svazek periodika

36

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

2903-2912

Kód UT WoS článku

000378362800007

EID výsledku v databázi Scopus

2-s2.0-84953279035