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- W939571504 abstract "Abstract The potassium based bioactive glasses have shown a better biocompatibility than soda containing bioactive glasses. Therefore, we have prepared a bioactive glass system containing potassium oxide and substituted with Al 2 O 3 for further enhancement of bioactivity, physico-chemical properties, mechanical strength as well as its behavior to human osteosarcoma cells. The prepared bioactive glasses have a general formula, 42SiO 2 –34CaO-6 P 2 O 5 –(18− x ) K 2 O, where x =0, 0.5, 1, 1.5 and 2.5 mol% of Al 2 O 3 . The in-vitro bioactivity of these samples was assessed by immersion in SBF solution for different time periods under physiological conditions. The formation of hydroxy carbonate apatite (HCA) layer on the surface of the glass samples after SBF treatment was confirmed by FTIR, XRD and SEM. The partial substitution of Al 2 O 3 for K 2 O in glass demonstrated a significant increase in mechanical properties such as compressive strength and elastic modulus, respectively. The cytotoxicity, cell viability, proliferation, apoptosis and cell attachment were assessed using human osteosarcoma U2-OS cell lines. The cell culture studies demonstrated that the samples containing high concentration of Al 2 O 3 showed a cytotoxic nature against cell lines. But the blood compatibility showed that all the samples were tolerant. Finally, this study clearly concludes that the optimization of Al 2 O 3 in present potash based bioactive glasses would be potential biomaterials for biomedical applications." @default.
- W939571504 created "2016-06-24" @default.
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- W939571504 date "2015-11-01" @default.
- W939571504 modified "2023-09-24" @default.
- W939571504 title "Structural characterization and in vitro bioactivity assessment of SiO2–CaO–P2O5–K2O–Al2O3 glass as bioactive ceramic material" @default.
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- W939571504 doi "https://doi.org/10.1016/j.ceramint.2015.05.143" @default.
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