Fig. 9From: Characterization and in vitro assessment of three-dimensional extrusion Mg-Sr codoped SiO2-complexed porous microhydroxyapatite whisker scaffolds for biomedical engineeringFabrication of a porous hierarchical scaffold with Mg-Sr codoped SiO2-complexed microhydroxyapatite whiskers (mHAws). SEM micrograph of Mg-Sr codoped mHAws (a). Element mapping of Mg-Sr codoped mHAws (b). Prepared SMSHA scaffold (size 0.8 × 0.8 × 0.8 cm): the macroporous surface (c) and the microporous surface (d). Schematic diagram of scaffold filling bone defect (e) for BMSC osteogenic differentiation and bone regeneration (f)Back to article page