| Title | Characterization of apatite layer formation on P 2O
5-CaO, P
2O
5-CaO- Na
2O, and P
2O
5-CaO-Na
|
| Publication Type | Journal Article |
| 1996 |
| Authors | Jha, LJ, Santos, JD, Knowles, JC |
| Journal | Journal of Biomedical Materials ResearchJ. BIOMED. MATER. RES. |
| Volume | 31 |
| Issue | 4New York, NY, United States |
| Pagination | 481 - 486 |
| Date Published | 1996/// |
| 00219304 (ISSN) |
| Apatite, article, binding affinity, Biomaterials, bone strength, Calcium Compounds, Carbonates, Ceramic materials, Characterization, chemical composition, Composite materials, Crystallites, electron microscopy, glass, Glass hydroxyapatite composites, Hank balanced salt solution, hydroxyapatite, Hydroxyapatites, immersion, Microscopy, Electron, Scanning, Molecular Structure, Oxides, prosthesis material, Scanning electron microscopy, scanning tunneling microscopy, Spectrum Analysis, Thin film X ray diffractometry, Thin films, X ray diffraction, X ray diffraction analysis, X ray photoelectron spectroscopy, X-Ray Diffraction |
| P 2O
5-based glass hydroxyapatite (HA) composites denoted HA-2 oxide, HA-3 oxide, and HA-4 oxide, were immersed in Hank's balanced salt solution for a period of 1, 2, 3, and 4 weeks at 37°C in nonagitated condition for in vitro evaluation. A surface layer was precipitated on the composites that was analyzed using scanning electron microscopy (SEM), X-ray photoelecton spectroscopy, and thin film X-ray diffractometry (TF-XRD). SEM micrographs showed complete coverage of the composite surface by crystallites after immersion of 1 week in the solution, which grew thicker with respect to immersion time. The binding energies measured by XPS indicated apatite formation and the presence of carbonate on the composite surface, showing the newly formed layer was a carbonated apatite. Confirmation of the formed apatite layer was obtained by TF-XRD.
2O
5-based glass hydroxyapatite (HA) composites denoted HA-2 oxide, HA-3 oxide, and HA-4 oxide, were immersed in Hank's balanced salt solution for a period of 1, 2, 3, and 4 weeks at 37°C in nonagitated condition for in vitro evaluation. A surface layer was precipitated on the composites that was analyzed using scanning electron microscopy (SEM), X-ray photoelectron spectroscopy, and thin film X-ray diffractometry (TF-XRD). SEM micrographs showed complete coverage of the composite surface by crystallites after immersion of 1 week in the solution, which grew thicker with respect to immersion time. The binding energies measured by XPS indicated apatite formation and the presence of carbonate on the composite surface, showing the newly formed layer was a carbonated apatite. Confirmation of the formed apatite layer was obtained by TF-XRD.
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