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< Vol. 10 Issue 2 | May-Aug 2012 | pp. 67 - 162

Influence of albumin on mineralization of PMMA-based/glass composites

Abstract

Purpose: The formation of a calcium phosphate layer on the surface of bone tissue engineering biomaterials is crucial for their integration in bone. Simulated biological fluids used to study the in vitro formation of those layers do not usually contain important organic components present in vivo―notably proteins. In this work the influence of bovine serum albumin on the mineralization process of poly(methylmethacrylate)-based composite was studied in vitro. Methods: The effect of protein on calcium phosphate formation was followed by ion concentration analyses (ICP), x-ray diffraction (XRD), and scanning electron microscopy coupled with x-ray energy dispersive spectroscopy (SEM-EDS). Results and Conclusions: The results showed the precipitation of a calcium phosphate layer on the surface of composites immersed in SBF and SBFA. Further transformation and crystallization of this layer, initially amorphous, appears to be influenced by the presence of albumin.

J Appl Biomater Funct Mater 2012; 10(2): 92 - 98

Article Type: ORIGINAL RESEARCH ARTICLE

DOI:10.5301/JABFM.2012.9254

Authors

Bárbara J.M. Leite Ferreira, Maria Gabriela G.M. Duarte, Maria Helena Gil, Maria Helena V. Fernandes, Rui Nunes Correia

Article History

  • • Accepted on 06/06/2011
  • • Available online on 22/06/2012
  • • Published online on 27/09/2012

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Authors

  • Leite Ferreira, Bárbara J.M. [PubMed] [Google Scholar]
    Centre for Research in Ceramic and Composite Materials (CICECO); Department of Ceramics and Glass Engineering, University of Aveiro, Campus Universitário de Santiago, Aveiro - Portugal
  • Duarte, Maria Gabriela G.M. [PubMed] [Google Scholar]
    Department of Chemical Engineering, Faculty of Sciences and Technology, University of Coimbra, Coimbra - Portugal
  • Gil, Maria Helena [PubMed] [Google Scholar]
    Department of Chemical Engineering, Faculty of Sciences and Technology, University of Coimbra, Coimbra - Portugal
  • Fernandes, Maria Helena V. [PubMed] [Google Scholar]
    Centre for Research in Ceramic and Composite Materials (CICECO); Department of Ceramics and Glass Engineering, University of Aveiro, Campus Universitário de Santiago, Aveiro - Portugal
  • Nunes Correia, Rui [PubMed] [Google Scholar]
    Centre for Research in Ceramic and Composite Materials (CICECO); Department of Ceramics and Glass Engineering, University of Aveiro, Campus Universitário de Santiago, Aveiro - Portugal

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