Study Of In Vitro Bioactivity And Characterization Of Ha-Tio2 Based 45s5 Biocomposites

Bioactive glass (45S5), its lean mechanical strength limits and bioactivity in load bearing positions was reinforced by introducing titania (TiO2) and HA. HA-TiO2 based 45S5 biocomposites having general composition 45S5 (100-2X)+XHA+XTiO2 (where X=0 to 20 wt%) were prepared by uniaxial pressing followed by sintering at 1000˚C. In order to determine its in vitro bioactivity these samples were exposed to SBF solution for different time intervals. The samples were evaluated by XRD, FTIR, SEM before and after soaking in SBF. FTIR analysis has shown the presence of apatite formation on the surface of the samples. Further bioactivity of biocomposites increases with increasing concentration of HA.