Synthesis and characterization of microporous hydroxyapatite, comparison with a commercial product
DOI:
https://doi.org/10.17533/udea.redin.18629Keywords:
hydroxyapatite, porosity, bone repair, calcium phosphate, oseointregrationAbstract
The hydroxyapatite is the natural component of the human bone which can synthetically obtained by the reaction between calcium nitrate and ammonium phosphate keeping its bioactivity properties. Therefore, it can be chemically linked with the bone tissue. In this work microporous hydroxyapatite was obtained by a precipitation method, a polymer was added to generate the porosity and calcined at 750 and 850 °C. The synthesized hydroxyapatite (denominated HA UdeA) was compared with a commercial product. The samples were characterized by X Ray Diffraction (XRD), Fourier Transformed Infra Red (FTIR), Scanning Electronic Microscopy (SEM) and Thermoanalytical techniques (DTA – TGA). The results indicate that HA UdeA and the commercial product presented similar characteristics as crystalline structure, chemical composition and adsorption of species. Although some differences in shape and particle size were observed both ceramics can be used as implant biomaterials, for example in bone repair.
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