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Inorganic Materials

, Volume 51, Issue 4, pp 396–399 | Cite as

Microstructure formation in porous calcium phosphate-chitosan bone cements

  • A. Yu. Teterina
  • A. Yu. Fedotov
  • A. A. Egorov
  • S. M. Barinov
  • V. S. KomlevEmail author
Article

Abstract

We have studied the microstructure formation in composite cement materials consisting of amorphous calcium phosphate and chitosan and reinforced with sodium alginate granules, their compressive strength, and the kinetics of their dissolution in an isotonic solution. Hardening in air allowed us to obtain a cement stone with a strength of up to 18 MPa and limiting strain of 6–8%. During hardening in simulated body fluid, the maximum strength decreased to 0.8 MPa, and the strain increased to 25–30%, which was due to the dissolution of the granules and the increase in the elasticity of the chitosan framework. The calcium ion release to the isotonic solution varied nonmonotonically, with a maximum in the initial stage of hardening. The cements are intended for the fabrication of porous matrices in bone tissue regeneration.

Keywords

Chitosan Calcium Phosphate Simulated Body Fluid Calcium Phosphate Cement Amorphous Calcium Phosphate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Pleiades Publishing, Ltd. 2015

Authors and Affiliations

  • A. Yu. Teterina
    • 1
  • A. Yu. Fedotov
    • 1
  • A. A. Egorov
    • 1
  • S. M. Barinov
    • 1
  • V. S. Komlev
    • 1
    Email author
  1. 1.Baikov Institute of Metallurgy and Materials ScienceRussian Academy of SciencesMoscowRussia

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