Abstract
In this work nanofibrous 3D scaffolds of bioactive glasses (58S, 60%SiO2–36%CaO–4%P2O5 in mol and 63S, 65%SiO2–31%CaO–4%P2O5 in mol) were produced by a one-step solution blow spinning (SBS) process. A green synthesis route was used with water as solvent and PVA (polyvinyl alcohol), 8 wt%, as a spinning agent. The physical properties of the scaffolds were studied, and their bioactivity assessed using simulated body fluid (SBF) and cell viability evaluated with MC3T3-E1 cells. After immersion in SBF, hydroxyapatite formed on the surface of the fibers within 12 h in both compositions. Pre-osteoblastic cells MC3T3-E1 were seeded on nanofiber surfaces and the bioactive glass scaffolds displayed enhanced cell number, protein synthesis and differentiation levels of alkaline phosphatase activity consistent with cytocompatibility. Such novel biomaterials have high potential to be used as scaffolds in tissue engineering for bone regeneration.
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