In vitro bioactivity of silicon nitride-hydroxyapatite composites

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F15%3APU136202" target="_blank" >RIV/00216305:26310/15:PU136202 - isvavai.cz</a>
Result on the web
<a href="http://apps.webofknowledge.com.ezproxy.lib.vutbr.cz/full_record.do?product=WOS&search_mode=GeneralSearch&qid=22&SID=E6JXvEJHJpsw8EibggE&page=1&doc=1" target="_blank" >http://apps.webofknowledge.com.ezproxy.lib.vutbr.cz/full_record.do?product=WOS&search_mode=GeneralSearch&qid=22&SID=E6JXvEJHJpsw8EibggE&page=1&doc=1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ceramint.2015.03.011" target="_blank" >10.1016/j.ceramint.2015.03.011</a>

Result language
angličtina
Original language name
In vitro bioactivity of silicon nitride-hydroxyapatite composites
Original language description
Silicon nitride-based ceramics are characterised especially by high chemical resistance, superior combination of fracture toughness, hardness and bioinertness. However, the biological applications often require additional properties, e.g. bioactivity enabling stronger bonding to the host tissue. Hydroxyapatite coating prepared by sol gel route, which provides pure, stable and nano-crystalline product is one of the ways to achieve bioactivity of bioinert ceramics. Therefore silicon nitride hydroxyapatite composites were prepared by infiltration of hydroxyapatite precursor sol into the silicon nitride based porous ceramics. The conditions of sol preparation were optimised to be appropriate for pure HA synthesis: ageing at elevated temperature (85 degrees C) and calcinations at 500 degrees C for 1 h. Cytotoxicity and in vitro bioactivity of Si3N4-HA composites were tested in order to verify the effect of hydroxyapatite addition on the biological properties of composite. After immersion of porous composite into simulated body fluid (SBF) for 21 days, calcium phosphate layer was formed on the surface of silicon nitride hydroxyapatite composites, indicating their bioactivity. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20504 - Ceramics

Project
<a href="/en/project/LO1211" target="_blank" >LO1211: Materials Research Centre at FCH BUT- Sustainability and Development</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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