Paper Title:
Chemical and Biological Characterization of Geopolymers for Potential Application as Hard Tissue Prostheses
  Abstract

In this study different geopolymers have been investigated and characterized as potential biomaterials. The work presents exhaustive FT-IR, SEM/EDS and X-Ray studies of two geopolymer formulations, where water content, water to solid content and curing conditions have been varied during mixing stage, maintaining constant the ratios among Na-Al-Si. The amorphous matrix is typical of sodium aluminosilicates, as shown by the FT-IR spectra. The presence of zeolitic phases has been observed by XRD at the surface of the material while the main matrix was characterized by amorphous aluminosilicate phases. The compressive strength of all the compositions was higher than 50 MPa. In order to study their bioactivity, samples of the studied materials were soaked in a simulated body fluid (SBF). The bioactivity of the synthesized geopolymers was shown by the formation of a layer of hydroxyapatite on the surface of the materials by using the SEM.

  Info
Periodical
Edited by
Pietro VINCENZINI and Cristina LEONELLI
Pages
192-197
DOI
10.4028/www.scientific.net/AST.69.192
Citation
M. Catauro, F. Bollino, I. Lancellotti, E. Kamseu, C. Leonelli, "Chemical and Biological Characterization of Geopolymers for Potential Application as Hard Tissue Prostheses", Advances in Science and Technology, Vol. 69, pp. 192-197, 2010
Online since
October 2010
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$32.00
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