Mineralization Layers on Glasses of the Si-Ca-P-Mg System in a Physiologically Buffered Plasmatic Electrolyte |
| Journal |
Materials Science Forum (Volumes 587 - 588) |
| Volume |
Advanced Materials Forum IV |
| Edited by |
António Torres Marques, António Fernando Silva, António Paulo Monteiro Baptista, Carlos Sá, Fernando Jorge Lino Alves, Luís Filipe Malheiros and Manuel Vieira |
| Pages |
12-16 |
| DOI |
10.4028/www.scientific.net/MSF.587-588.12 |
| Online since |
June, 2008 |
| Authors |
Sandra C.P. Cachinho,
Rui N. Correia,
Maria Helena F.V. Fernandes
|
| Keywords |
In Vitro Tests, Apatite Layer, Bioglasses, Carbonate Buffer |
| Abstract |
Mineralization experiments on glasses of the Si-Ca-P-Mg system were carried out for 7 days in
carbonated simulated inorganic plasma (CSIP) buffered with CO2/HCO3
-. This method enables
physiological buffering of the solution within the 7.3–7.4 pH interval by maintaining a HCO3
-
concentration between 24 and 27 mmol.L-1, which is the normal concentration range in blood
plasma. XRD, SEM/EDS and FTIR were used to characterise the glass surfaces. All glasses
exhibited an apatite-like deposit whose Ca/P ratio was dependent on glass composition. |
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