Title of article
Effect of the Synthesis Parameters on the Properties of Biphasic Ca(OH) -HA Nanopowders for Tissue Engineering Applications
Author/Authors
Ansari, Mojtaba Faculty of Biomedical Engineering - Amirkabir University of Technology, Tehran , Moztarzadeh, Fathollah Faculty of Biomedical Engineering - Amirkabir University of Technology, Tehran
Pages
8
From page
335
To page
342
Abstract
Nanocrystalline hydroxyapatite was precipitated from calcium hydroxide and
phosphoric acid. Effects of precipitation temperature and different calcium to
phosphate ratios (Ca/P) on the obtained powders were investigated. Characterization
of the powders was performed using XRD and FTIR spectra, scanning electron
microscopy, and transmission electron microscopy. Increase in precipitation
temperature increases the size and crystallinity of obtained crystals. Samples with
Ca/P ratios more than stoichiometric ratio (1.67) had calcium hydroxide in their
structures which is suitable for dental applications. Lower precipitation temperatures
lead to lower crystallinity which is ideal for dental applications due to an increase
in calcium hydroxide release.
Keywords
Ceramics , Chemical synthesis , Electron microscopy , Nanostructures , Xray diffraction
Journal title
Astroparticle Physics
Serial Year
2012
Record number
2481803
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