Bioactive Composite Materials for Bone Tissue Applications

Abstract:

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Two materials with potential application in bone tissue repair have been developed: 1) a non-biodegradable composite based in a new methacrylic-co-acrylic matrix; and 2) a biodegradable composite based in a chitosan (Ch) matrix. Both matrices were reinforced with glass-ceramic particles of composition (mol%) 70 SiO2 – 30 CaO. The in vitro bioactivity of composites was assessed by soaking in simulated body fluid (SBF) for periods of up to 7 days at 37º C. X-ray diffraction (XRD) and scanning electron microscopy coupled with X-ray energy dispersive spectroscopy (SEM-EDS) were used for deposit identification after different soaking periods. Calcium phosphate particulate deposits were detected after 3 days of immersion, followed by growth and maturation towards apatite.

Info:

Periodical:

Materials Science Forum (Volumes 514-516)

Edited by:

Paula Maria Vilarinho

Pages:

985-989

DOI:

10.4028/www.scientific.net/MSF.514-516.985

Citation:

B.J.M. Leite Ferreira et al., "Bioactive Composite Materials for Bone Tissue Applications", Materials Science Forum, Vols. 514-516, pp. 985-989, 2006

Online since:

May 2006

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Price:

$35.00

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