Abstract
Three-dimensional (3D) macroporous hydroxyapatite (HAp) ceramics were fabricated via a facile emulsion templating technique for bone tissue engineering applications. The prepared scaffolds have an open, uniform, and 3D fully interconnected pore structure with high porosities, mechanical strength, and a large surface/volume ratio. The porous structure, which is composed of an array of quasi-spherical large cells interconnected through windows, has a pore diameter in the range of 5–30μm. The samples sintered at the optimal temperature (1200°C) have an open porosity of ~76.5% and a high compressive strength of 4.26MPa. The technique discussed here is a significant advancement over other previously used methods to produce HAp ceramics and is expected to enable much improvement in the topology of the porous structure of scaffolds.
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