Journal article
Thermal and ultrasonic influence in the formation of nanometer scale hydroxyapatite bio-ceramic
International Journal of Nanomedicine, (6), pp.2083-2095
2011
Abstract
Hydroxyapatite (HAP) is a widely used biocompatible ceramic in many biomedical applications and devices. Currently nanometer-scale forms of HAP are being intensely investigated due to their close similarity to the inorganic mineral component of the natural bone matrix. In this study nano-HAP was prepared via a wet precipitation method using Ca(NO3)2 and KH2PO4 as the main reactants and NH4OH as the precipitator under ultrasonic irradiation. The Ca/P ratio was set at 1.67 and the pH was maintained at 9 during the synthesis process. The influence of the thermal treatment was investigated by using two thermal treatment processes to produce ultrafine nano-HAP powders. In the first heat treatment, a conventional radiant tube furnace was used to produce nano-particles with an average size of approximately 30 nm in diameter, while the second thermal treatment used a microwave-based technique to produce particles with an average diameter of 36 nm. The crystalline structure and morphology of all nanoparticle powders produced were investigated using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and Fourier transform infrared spectroscopy (FT-IR). Both thermal techniques effectively produced ultrafine powders with similar crystalline structure, morphology and particle sizes.
Details
- Title
- Thermal and ultrasonic influence in the formation of nanometer scale hydroxyapatite bio-ceramic
- Authors/Creators
- G.E.J. Poinern (Author/Creator) - Murdoch UniversityR.K. Brundavanam (Author/Creator)X.T. Le (Author/Creator)S. Djordjevic (Author/Creator)M. Prokic (Author/Creator)D. Fawcett (Author/Creator)
- Publication Details
- International Journal of Nanomedicine, (6), pp.2083-2095
- Publisher
- Dove Press
- Identifiers
- 991005540921007891
- Copyright
- © 2011 Poinern et al
- Murdoch Affiliation
- School of Engineering and Energy
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- International collaboration
- Citation topics
- 2 Chemistry
- 2.165 Nanofibers, Scaffolds & Fabrication
- 2.165.163 Hydroxyapatite Composites
- Web Of Science research areas
- Nanoscience & Nanotechnology
- Pharmacology & Pharmacy
- ESI research areas
- Pharmacology & Toxicology