| Title | In vitro calcium phosphate formation on SiO 2-Na
2O-CaO-P
2O
5 glass reinforced hydroxyapatite composite: A study by XPS analysis
|
| Publication Type | Journal Article |
| 1996 |
| Authors | Santos, JD, Jha, LJ, Monteiro, FJ |
| Journal | Journal of Materials Science: Materials in MedicineJ. MATER. SCI. MATER. MED. |
| Volume | 7 |
| Issue | 3London, United Kingdom |
| Pagination | 181 - 185 |
| Date Published | 1996/// |
| 09574530 (ISSN) |
| article, Binding energy, Biocompatibility, Biodegradation, biomaterial, Calcium, calcium phosphate, Characterization, Composite materials, Composition, Energy dispersive x ray analysis, glass, Glass reinforced hydroxyapetite composite, hydroxyapatite, implant, In vitro calcium phosphate formation, Ionic concentration, molecular interaction, Nucleation, Phosphates, phosphorus, priority journal, Scanning electron microscopy, Surfaces, X ray analysis, X ray photoelectron spectroscopy |
| In-vitro apatite layer formation on the surface of a newly developed glass reinforced hydroxyapatite composite was characterized using X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) equipped with energy dispersive X-ray analysis (EDXA). After 1 week soaking in an acellular simulated body fluid the composite surface was entirely covered by a Ca, P-layer, suggesting a bioactive behaviour. XPS binding energy results revealed that this surface layer was a carbonated and non- stoichiometric apatite with Ca/P ratio of 1.3. This apatite layer was composed of very fine needle-like crystallites. Comparative studies on a commercially available hydroxyapatite showed that a similar apatite layer was also formed on its surface.In-vitro apatite layer formation on the surface of a newly developed glass reinforced hydroxyapatite composite was characterized using X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) equipped with energy dispersive X-ray analysis (EDXA). After 1 week soaking in an acellular simulated body fluid the composite surface was entirely covered by a Ca, P-layer, suggesting a bioactive behaviour. XPS binding energy results revealed that this surface layer was a carbonated and non-stoichiometric apatite with Ca/P ratio of 1.3. This apatite layer was composed of very fine needle-like crystallites. Comparative studies on a commercially available hydroxyapatite showed that a similar apatite layer was also formed on its surface.
|
| http://www.scopus.com/inward/record.url?eid=2-s2.0-0030106254&partnerID=40&md5=725eba3e273e23b5c6519d07483495e8 |
