Different Synthesis Routes for Hydroxyapatite Nanoparticles by Mechanical Stirring

Abstract:

Nanosized hydroxyapatite (HA) with crystallinity and composition similar to bone apatite has been widely investigated in the last years, due to their excellent biocompatibility in bone replacement applications. This bioceramic can be synthesized by many wet chemical and mechanochemical methods. In this paper, nanosized hydroxyapatite powders were synthesized by two wet chemical routes using mechanical stirring method. The first route was used for HA synthesis from CaCl₂.2H₂O and Na₃PO₄.12H₂O solutions and the second route was from Ca (OH)₂ and H₃PO₄ solutions. The synthesized HA nanoparticles were characterized by Dynamic Light Scattering, BET Surface Area analysis, X-ray Diffraction, Infrared Spectroscopy, chemical analysis and Scanning Electron Microscopy. The results indicated that HA nanoparticles were successfully synthesized by both wet chemical precipitation routes and all powders presented a Ca/P ratio similar to stoichiometric HA, nanoneedles morphology and single HA crystalline phase.

• Periodical: Materials Science Forum (Volume 869)
• Pages: 969-974
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.869.969
• Online since: August 2016
• Authors: Juliana do Nascimento Lunz*, Karla Patricia Macedo Licona, Alexandre Antunes Ribeiro, José Angel Delgado, Lizette Morejón Alonso, Marize Varella de Oliveira
• Keywords: Bioceramic, Hydroxyapatite, Mechanical Stirring, Nanoparticles

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