Fabrication and Characterization of Sr-doped Hydroxyapatite Porous Scaffold

Strontium (Sr) is a trace metal ion that exists in natural bones. It not only regulates metabolism but also promotes osteoblast differentiation and the formation of new bones. In this study, a new method was developed to prepare Sr-doped hydroxyapatite (HA) three-dimensional (3D) porous scaffolds. A preliminary scaffold was obtained by an extrusion 3D printing method using HA–sodium alginate composite slurry as printing ink. Then, the obtained...