ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
In this work a new kind of CaSiO3-doped α-Ca3(PO4)2 ceramic materials, withcompositions lying outside the field of the Ca3(PO4)2 solid solution in the system Ca3(PO4)2-CaSiO3, were obtained and some of their properties, relevant for bone repairing, were studied invitro. Crystalline α-Ca3(PO4)2 solid solution and minor amounts of non-equilibrium residual glasswere the only phases in the materials containing 2 and 5 wt% of CaSiO3. α-Ca3(PO4)2, crystallineeutectic-like phase and residual glass were observed for sample containing 15 and 20 wt% ofCaSiO3. The mechanical strength improved for all the doped ceramics with regard to un-dopedCa3(PO4)2. The release of ionic Ca and Si in simulated physiological conditions increased with thecontent of CaSiO3 and favored α-Ca3(PO4)2 surface transformation. The soluble componentsextracted from the CaSiO3-doped α-Ca3(PO4)2 bioceramics were not cytotoxic to human fibroblastlikecells. Initial cell adhesion onto the surface of the materials seemed to be partially hindered bysurface reactivity and remodeling, however those cells adhered to the experimental bioceramicswere viable and proliferated normally
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.361-363.237.pdf
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