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

83 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

Carbon Nanotubes
Multiwalled carbon nanotubes (MWCN)
Polymethyl Methacrylate
Durapatite
Polymethyl methacrylates
Hydroxyapatite
polymethyl methacrylate
Carbon nanotubes
Nanocomposites
nanocomposites
carbon nanotubes
Bone cement
Bone Cements
Granulation
Nanoindentation
cements
nanoindentation
reinforcement
Phase composition
Field emission

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

Hydroxyapatite modified with carbon-nanotube-reinforced poly(methyl methacrylate) : A nanocomposite material for biomedical applications. / Singh, Manoj Kumar; Shokuhfar, Tolou; De Almeida Gracio, Jose Joaquim; De Sousa, António Carlos Mendes; Da Fonte Fereira, José Maria; Garmestani, Hamid; Ahzi, Said.

In: Advanced Functional Materials, Vol. 18, No. 5, 11.03.2008, p. 694-700.

Research output: Contribution to journalArticle

Singh, Manoj Kumar ; Shokuhfar, Tolou ; De Almeida Gracio, Jose Joaquim ; De Sousa, António Carlos Mendes ; Da Fonte Fereira, José Maria ; Garmestani, Hamid ; Ahzi, Said. / Hydroxyapatite modified with carbon-nanotube-reinforced poly(methyl methacrylate) : A nanocomposite material for biomedical applications. In: Advanced Functional Materials. 2008 ; Vol. 18, No. 5. pp. 694-700.
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