Fabrication and characterization of porous hydroxyapatite microspheres by spray-drying method

Abstract

In the present paper, porous hydroxyapatite (HA) microspheres were fabricated using gelatin as a pore-forming agent by spray-drying method. The mean particle size of the microspheres is about 7 ?m and the surface area is about 53.4 m²/g. The experimental results showed that the porosity of the prepared microspheres is higher and the pores are more interconnected compared with the microspheres obtained without any additives.

Keywords

hydroxyapatite (HA), porous microspheres, spray drying, characterization