Hydroxyapatite modified with carbon-nanotube-reinforced poly(methyl methacrylate): A nanocomposite material for biomedical applications

Manoj Kumar Singh, Tolou Shokuhfar, Jose Joaquim De Almeida Gracio, António Carlos Mendes De Sousa, José Maria Da Fonte Fereira, Hamid Garmestani, Said Ahzi

Research output: Contribution to journalArticle

88 Citations (Scopus)

Abstract

The paper reports on a freeze-granulation technique to prepare a novel nanocomposite of poly(methyl methacrylate) (PMMA)-modified hydroxyapatite (HA) with multiwalled carbon nanotubes (MWCNTs) as reinforcement for a new generation biomedical bone cement and implant coatings. By using this technique it is possible to increase material homogeneity and also enhance the dispersion of MWCNTs in the composite matrix. The phase composition and the surface morphology of the nanocomposite material were studied using X-ray diffraction, field-emission scanning electron microscopy, and micro-Raman spectroscopy. Additionally, nanomechanical properties of different concentrations of MWCNT-reinforced nanocomposite were performed by a nanoindentation technique, which indicates that a concentration of 0.1 wt % MWCNTs in the PMMA/HA nanocomposite material gives the best mechanical properties.

Original languageEnglish
Pages (from-to)694-700
Number of pages7
JournalAdvanced Functional Materials
Volume18
Issue number5
DOIs
Publication statusPublished - 11 Mar 2008
Externally publishedYes

    Fingerprint

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Singh, M. K., Shokuhfar, T., De Almeida Gracio, J. J., De Sousa, A. C. M., Da Fonte Fereira, J. M., Garmestani, H., & Ahzi, S. (2008). Hydroxyapatite modified with carbon-nanotube-reinforced poly(methyl methacrylate): A nanocomposite material for biomedical applications. Advanced Functional Materials, 18(5), 694-700. https://doi.org/10.1002/adfm.200700888