What is it about?
Na2O was used in melt derived bioglass in order to reduce the melting temperature. However, low processing temperature of sol-gel method eliminates the needs of Na2O. But the existing of network modifier cations such as sodium (Na+) and calcium (Ca2+) introduced non-bridging oxygen (NBO) bonds whereas this NBO bonds enhance the dissolution and bioactivity of bioglass . Thus, this paper studies the effect of sodium nitrate addition on glass ceramic prepared via sol-gel method.
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Why is it important?
Our findings show that despite glass ceramic with sodium nitrate addition (Na-GC) exhibited macro porous structure, it still demonstrated higher compression strength compared to glass-ceramic without sodium nitrate addition (GC). The compressive strength of Na-GC was in par with natural trabecular bone. Besides that, Na-GC showed the formation of apatite layer after immersed in SBF solution for 14 days which proved their bioactivity property.
Perspectives
I hope this article can help in the future development of glass-ceramic as bioactive scaffold materials.
Siti Rohani Zainudin
University Malaysia Perlis
Read the Original
This page is a summary of: Preparation and Characterization of Macro Porous Glass-Ceramics as Bioactive Scaffold Material, Solid State Phenomena, August 2018, Trans Tech Publications,
DOI: 10.4028/www.scientific.net/ssp.280.83.
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