Synthesis of hydroxyapatite nanopowders by sol–gel emulsion technique

Bulletin of Materials Science

关键词: Hydroxyapatite;    sol–gel preparation;    nanoparticles;    emulsion;    microstructure.;   

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Hydroxyapatite nanopowders were synthesized by a sol–gel emulsion technique by varying the concentration of a non-ionic surfactant in the organic phases (oil phase) of water-in-oil (w/o) emulsion. Calcium acetate dissolved in distilled water and phosphorous pentoxide dissolved in 2-butanol were used as starting precursors. The prepared sol was emulsified in a support solvent (cyclohexane) containing 2, 4 and 5 volume% of surfactant (Span 80), followed by the addition of triethylamine, for gelation. The gel powders thus obtained were calcined at different temperatures up to 750°C. Characterization was done using XRD, SEM and TEM. Pellets were made from the developed HAP powders and tested for its biocompatibility after their immersion in the simulated body fluid.

【 授权许可】

CC BY