From atomic scale to biological performance: the role of magnesium in solubility of the network and bioactivity of 45S5 Bioglass®

• MD+SBF experiments map MgO (0–20 mol%) effects in 45S5 Bioglass®. • Network connectivity rises with MgO (NC 1.926→2.035), strengthening the glass. • Ion-clustering R-factors show maximal cation homogeneity at intermediate MgO (45-M5). • 45-M5 shows balanced Si/Mg release and moderate pH shift after 24 h in SBF. • FE-SEM confirms uniform, rapid hydroxyapatite formation on the 45-M5 composition. Understanding the multiscale structural behavior of magnesium-doped 45S5 bioactive glasses (BGs) is essential for optimizing their performance in tissue engineering and bone regeneration. In this study, eight compositions (45-M0 to 45-M20) with 0-20 mol% MgO were investigated using a combined molecular dynamics (MD)…

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  Hrvatska Zaklada za Znanost