Journal of Materials Science: Materials in Medicine

, Volume 24, Issue 11, pp 2491–2503 | Cite as

Recent advances in synthesis, characterization of hydroxyapatite/polyurethane composites and study of their biocompatible properties

  • L. M. Popescu
  • R. M. Piticescu
  • A. Antonelli
  • C. F. Rusti
  • E. Carboni
  • C. Sfara
  • M. Magnani
  • V. Badilita
  • E. Vasile
  • R. Trusca
  • T. Buruiana
Article

Abstract

The development of engineered biomaterials that mimic bone tissues is a promising research area that benefits from a growing interest. Polymers and polymer–ceramic composites are the principle materials investigated for the development of synthetic bone scaffolds thanks to their proven biocompatibility and biostability. Several polymers have been combined with calcium phosphates (mainly hydroxyapatite) to prepare nanocomposites with improved biocompatible and mechanical properties. Here, we report the hydrothermal synthesis in high pressure conditions of nanostructured composites based on hydroxyapatite and polyurethane functionalized with carboxyl and thiol groups. Cell-material interactions were investigated for potential applications of these new types of composites as coating for orthopedic implants. Physical–chemical and morphological characteristics of hydroxyapatite/polyurethane composites were evaluated for different compositions, showing their dependence on synthesis parameters (pressure, temperature). In vitro experiments, performed to verify if these composites are biocompatible cell culture substrates, showed that they are not toxic and do not affect cell viability.

Keywords

HeLa Cell Polyurethane Hydroxyapatite High Resolution Transmission Electron Microscope High Resolution Transmission Electron Microscope 
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.

Notes

Acknowledgments

L. M. P. and T. B. would like to acknowledge the financial support of European Social Fund—“Cristofor I. Simionescu” Postdoctoral Fellowship Programme (ID POSDRU/89/1.5/S/55216), Sectoral Operational Programme Human Resources Development 2007–2013. R.M.P would like to acknowledge COST TD0802 Programme. The authors would like to thank Dr. Michele Menotta for AFM analyses. L. M. P and R. M. P have equal contributions to this paper.

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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • L. M. Popescu
    • 1
    • 2
  • R. M. Piticescu
    • 2
  • A. Antonelli
    • 3
  • C. F. Rusti
    • 2
  • E. Carboni
    • 3
  • C. Sfara
    • 3
  • M. Magnani
    • 3
  • V. Badilita
    • 2
  • E. Vasile
    • 4
  • R. Trusca
    • 4
  • T. Buruiana
    • 1
  1. 1.“Petru Poni” Institute of Macromolecular ChemistryIasiRomania
  2. 2.National R&D Institute for Non-Ferrous and Rare MetalsPantelimonRomania
  3. 3.Department of Biomolecular SciencesUniversity of Urbino “Carlo Bo”UrbinoItaly
  4. 4.S.C. METAV-CDBucharestRomania

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