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Assignment of the bands in the IR spectra of fluorapatite samples

Assignment of the bands in the IR spectra of fluorapatite samples

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Figure 8. Dissolution rate of Ca 10 (PO 4 ) 6 F 2 and Ca 8 SrMg(PO 4 )...
Assignment of the bands in the IR spectra of fluorapatite samples
Young's modulus, hardness and fracture toughness of fluorapatite...
The effect of Sr and Mg substitutions on structure, mechanical properties and solubility of fluorapatite ceramics for biomedical applications
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  • Sep 2022
Ionic substitutions play important role in the modifications of biological apatites. Recently, the attention has been focused on the co-doping effects on functional properties of apatite based biomaterials. In this research work, the dense samples of fluorapatites, Ca10(PO4)6F2 and Ca8MgSr(PO4)6F2, were produced after sintering at 1250?C for 6 h in...
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... peaks of Ca, P, O, F, Sr and Mg correspond to the peaks of the main fluorapatites elements. Figure 6 shows IR spectra of the sintered fluorapatite Ca 10 bands is given in Table 1. A few differences were observed in the spectrum of the pure and Sr-Mg-doped fluorapatite ceramics. ...

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Fluorine substituted hydroxyapatite microspheres: Template-free hydrothermal synthesis and sustained fluoride-releasing properties
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To avoid sudden release of fluoride, F-substituted hydroxyapatite (FHA) porous microspheres were prepared for the treatment of F-deficiency tissues. In the absence of any template-directing reagents, FHA microspheres with diameters of about 30 ?m were successfully fabricated via hydrothermal method with urea as homogeneous precipitant to regulate the nucleation, growth and self-assembly process. Urea concentration and hydrothermal temperature played an important role in the formation and regulation of spherical hydroxyapatite. The synthesized FHA microspheres with large specific surface area, large pore volume and complex porous structure were efficient for the adsorption and long-term stable release of ionic extracts. Concentration of F- ions in physiological salt solution was maintained in the range of the therapeutic window without exceeding the toxic threshold within 30 days. The ionic extracts of FHA porous microspheres promoted the proliferation of human osteoblast-like cells (MG-63). The fabricated FHA microspheres may be a potential candidate as bioactive fluoride-release carriers for the treatment of osteoporosis and bone defects.
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