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The influence of the magnesium powder used as reinforcement material on the properties of some collagen based composite biomaterials

I. ANTONIAC1, M. D. VRÂNCEANU1,* , A. ANTONIAC1

Affiliation

  1. University Politehnica of Bucharest, 313 Independentei Street, 060042, Romania

Abstract

Collagen based composite materials reinforced with different biodegradable ceramics appear to be an important category of biomaterials used for bone defects healing. In this study, we present the results regarding the obtaining and characterization of some new compositions for the collagen based composite materials reinforced with a biodegradable ceramic and magnesium powder. The experimental biocomposites were prepared by freeze-drying for 48h of collagen gels having the different weight ratio (1%, 3% and 5% wt) of magnesium powder (coded: M1, M2, M3), β-tricalcium phosphate /β-TCP (coded: T1, T2, T3) and a mixture Mg+10%β-TCP (coded: MT1, MT2, MT3) and cross-linked with glutaraldehyde. In this paper we describe the influence of the magnesium powder used as reinforcement material on the structure and properties of the collagen based composites. In order to find the appropriate properties of this composites for using in the human body we have perform different measurements: porosity, water absorption and in vitro degradation test using collagenase as medium. The water absorption and degradation characteristics have been influenced by the magnesium powder, increasing the degradation time of the experimental biocomposites..

Keywords

Composite materials, Bone substitute, Magnesium, Porosity.

Submitted at: March 25, 2013
Accepted at: July 11, 2013

Citation

I. ANTONIAC, M. D. VRÂNCEANU, A. ANTONIAC, The influence of the magnesium powder used as reinforcement material on the properties of some collagen based composite biomaterials, Journal of Optoelectronics and Advanced Materials Vol. 15, Iss. 7-8, pp. 667-672 (2013)