| Title | Investigation of the dissolution of the bioceramic hydroxyapatite in the presence of titanium ions using ToF-SIMS and XPS |
| Publication Type | Journal Article |
| 1997 |
| Authors | Leadley, SR, Davies, MC, Ribeiro, CC, Barbosa, MA, Paul, AJ, Watts, JF |
| Journal | BiomaterialsBIOMATERIALS |
| Volume | 18 |
| Issue | 4Oxford, United Kingdom |
| Pagination | 311 - 316 |
| Date Published | 1997/// |
| 01429612 (ISSN) |
| article, Bioceramic hydroxyapatite, Biocompatible Materials, biomaterial, Biomaterials, Cations, ceramic prosthesis, ceramics, Composition, Dissolution, Durapatite, hydroxyapatite, information processing, mass spectrometry, Phosphates, priority journal, Radiography, Secondary ion mass spectrometry, Spectrometry, Mass, Secondary Ion, Spectrometry, X-Ray Emission, Spectrophotometry, Substitution reactions, Surface chemistry, surface property, Surface structure, Time of flight secondary ion mass spectrometry, Time-of-flight secondary ion mass spectrometry, Titanium, Titanium chloride, X ray photoelectron spectroscopy, X-ray photoelectron spectroscopy |
| Time-of-flight secondary ion mass spectrometry (ToF-SIMS) and X-ray photoelectron spectroscopy (XPS) analyses have been used to investigate the dissolution of hydroxyapatite in the presence of titanium chloride suggesting the substitution of titanium ions for calcium in the hydroxyapatite structure. The surface analytical data suggest that titanium was incorporated within the solid phase as titanium phosphate. Comparison of relative ion intensities in the ToF-SIMS spectra reveals changes in the composition of the surface chemistry of hydroxyapatite. These relative ion intensities show that the maximum surface uptake of titanium occurred at a solution concentration of 500 ppm titanium chloride for a time of incubation of 30 min. These data correlate with that obtained using XPS highlighting the semi-quantitative information which ToF-SIMS can provide.Time-of-flight secondary ion mass spectrometry (ToF-SIMS) and X-ray photoelectron spectroscopy (XPS) analyses have been used to investigate the dissolution of hydroxyapatite in the presence of titanium chloride suggesting the substitution of titanium ions for calcium in the hydroxyapatite structure. The surface analytical data suggest that titanium was incorporated within the solid phase as titanium phosphate. Comparison of relative ion intensities in the ToF-SIMS spectra reveals changes in the composition of the surface chemistry of hydroxyapatite. These relative ion intensities show that the maximum surface uptake of titanium occurred at a solution concentration of 500 ppm titanium chloride for a time of incubation of 30 min. These data correlate with that obtained using XPS highlighting the semi-quantitative information which ToF-SIMS can provide.
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