Abstract
Bioactive glasses (BG) are a group of inorganic materials widely used in Bone Tissue Engineering (BTE). These biomaterials react with body fluids resulting in the formation of bone like apatite layer. In this study, sol-gel derived bioactive glass was synthesized in the SiO2-CaO-P2O5 system according to augmented constrained mixture experimental design, with percentage restrictions for each oxide as follows: 58 ≤ SiO2 ≤ 70; 6 ≤ P2O5 ≤ 9 and 24 ≤ CaO ≤ 34. BG were conformed into short-bulk cylinders and immersed in Simulated Body Fluid (SBF) solution for 7 and 14 days in order to carry out bioactivity tests. Apatite layer formation was confirmed by Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Analysis (EDX). The results showed apatite layer formation depended on BG chemical composition proved with p-values from ANOVA analysis below 0.05 indicating factors significance over the response. The formed apatite layer presented a Ca/P ratio similar to bone apatite, this result is appropriate for biomaterials used in BTE.
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The authors are thankful with Biomaterials Research Group for providing the necessary reagents and studies during the development of this project.
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The authors declare that they have no conflict of interest.
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Quintero, L.A., Escobar, D.M. (2017). Chemical Composition Effect of Sol-Gel Derived Bioactive Glass Over Bioactivity Behavior. In: Meyers, M., et al. Proceedings of the 3rd Pan American Materials Congress. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-52132-9_2
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