In vitro calcium phosphate formation on SiO2-Na2O-CaO-P2O5 glass reinforced hydroxyapatite composite: A study by XPS analysis

• Type: Article in International Scientific Journal
• Date: 1996

Authors

Santos, JD (Author) FEUP; Jha, LJ (Author) Other; Monteiro, FJ (Author) FEUP

Journal

Title: Journal of Materials Science: Materials in Medicine

Vol. 7 No. 3

Pages: 181-185

ISSN: 0957-4530

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 57 Citations

Scopus - 60 Citations

Scientific classification

FOS: Engineering and technology > Environmental biotechnology

CORDIS: Technological sciences > Engineering > Biomaterial engineering

Other information

Authenticus ID: P-001-EPG

DOI: 10.1007/bf00121258

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5