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2015 | 127 | 4 | 925-927
Article title

In Vitro Bioactivity Study of Pure Wollastonite Prepared from Local Raw Materials

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EN
Abstracts
EN
CaSiO₃ ceramics have been proposed as a medical material for artificial bone and dental root, since they proved to be bioactive and biocompatible. In this study, CaSiO₃ powders were synthesized by mixing of Calcium oxide (CaO) and (SiO₂) for 3 h, and subsequent calcination of the mixture at 710°C for 2 h. The compacts were conventionally sintered at 1150°C for 2 h. Moreover, the in vitro bioactivity of wollastonite was investigated by soaking the powders in simulated body fluid (SBF) for various time periods to analyze the nucleation and growth of hydroxyapatite (HA) on the surface of the powders. The obtained results showed that hydroxy-carbonate-apatite (HCA) can be formed on the surface of α-CaSiO₃ particles soaked in SBF solution for 3 days, and a continuous layer of dense deposits of HCA covered the surface of α-CaSiO₃ powders after 15 days of soaking in SBF solution. Besides this, α-CaSiO₃ showed strong hydration when soaked in SBF solution and the hydration was favorable for formation of HCA. Finally, obtained results indicate that α-CaSiO₃ showed to be highly bioactive through the formation of homogeneous apatite layer.
Keywords
EN
Contributors
author
  • Faculty of Exact Science, Physics department, Ceramics Lab, Constantine University 1, Constantine 25000, Algeria.
  • Ecole Nationale Superieure de Biotechnologie (ENSB), nouvelle ville universitaire Constantine 25000, Algeria.
author
  • Faculty of Exact Science, Physics department, Ceramics Lab, Constantine University 1, Constantine 25000, Algeria.
author
  • Université de Rennes 1, SCR, UMR CNRS 6226 Campus Beaulieu, France.
author
  • Faculty of Exact Science, Physics department, Ceramics Lab, Constantine University 1, Constantine 25000, Algeria.
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv127n4014kz
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