Low Temperature Synthesis of Nanocrystalline Hydroxyapatite: Effect of Mg and Sr Content
Journal of the American Ceramic Society 2017
Līga Stīpniece, Inga Narkevica, Kristīne Šalma-Ancāne

Nanocrystalline Mg- or Sr-containing hydroxyapatite powders were synthesized through low-temperature chemical precipitation. The most significant factor for reduction in particle sizes included adjusting the reaction temperature between 0°C and 50°C. Syntheses products were characterized using several analytical tools to determine purity and influence of added amount (up to 15 mol%) of Mg or Sr on the composition and structure. Qualitative analysis by Fourier transform infrared spectroscopy and low intensity, broad X-ray diffraction peaks indicated the presence of nanocrystalline and/or amorphous hydroxyapatite in all the products. Moreover, a significant decrease in the crystallinity was observed with increasing Mg (up to 2.8 ± 0.3 wt%) and Sr (up to 9.6 ± 1.0 wt%) concentration. N2 adsorption and scanning electron microscopy characterizations confirmed the nanocrystalline nature of the synthesized products. The synthesized products had nanosized spherical-like particle morphology with the specific surface area ranging from 89 ± 7 to 150 ± 20 m2/g.


Atslēgas vārdi
biomaterials; crystal structure; hydroxyapatite; nucleation; precipitation
DOI
10.1111/jace.14646
Hipersaite
http://onlinelibrary.wiley.com/doi/10.1111/jace.14646/full

Stīpniece, L., Narkevica, I., Šalma-Ancāne, K. Low Temperature Synthesis of Nanocrystalline Hydroxyapatite: Effect of Mg and Sr Content. Journal of the American Ceramic Society, 2017, Vol.100, Iss.4, 1697.-1706.lpp. ISSN 0002-7820. Pieejams: doi:10.1111/jace.14646

Publikācijas valoda
English (en)
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