Influence of Li2+ Content on Formation of Apatite Layer on Surface of SiO2-CaO-K2O-P2O5 Bioglass System | ||||
| Egyptian Journal of Biomedical Engineering and Biophysics | ||||
| Article 4, Volume 13, Issue 1, December 2012, Page 37-52 PDF (954.68 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejbbe.2012.1192 | ||||
 View on SCiNiTO | ||||
| Abstract | ||||
| IN PRESENT study, sol-gel derived glasses were prepared based on … the following general formula :SiO2-CaO-P2O5-K2O and different concentrations of -Li2O (0-10 wt.%) were substituted for K2O in the studied system. The influence of these substitutions is investigated for both in vitro apatite formation ability and structure changes of the system. The thermal behavior of biomaterials is characterized by DSC and TGA. The precipitated crystalline phases were identified by X-ray diffraction analysis before immersion in simulated body fluid .Infrared absorption spectroscopy is performed on glass samples before and after SBF .Bioactivity results of this study suggest that formation of apatite layer depends on the concentration of Li2O which represents decrement in vitro bioactivity of glass . Also, it is possible to develop bioactive glass system by percentage of lithium content which controls the dissolution rate of this system to be applied in vivo for dentine and bone replacement. | ||||
| Keywords | ||||
| sol-gel; Bioactive glass; in Vitro | ||||
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