Preparation and characterization of multi-walled carbon nanotube/hydroxyapatite nanocomposite film dip coated on Ti-6Al-4V by sol-gel method for biomedical applications: An in vitro study

Alireza Abrishamchian, Tabassom Hooshmand (Lead / Corresponding author), Mohammadreza Mohammadi, Farhood Najafi

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    38 Citations (Scopus)

    Abstract

    In the present research, the introduction of multi-walled carbon nanotubes (MWCNTs) into the hydroxyapatite (HA) matrix and dip coating of nanocomposite on titanium alloy (Ti-6Al-4V) plate was conducted in order to improve the performance of the HA-coated implant via the sol-gel method. The structural characterization and electron microscopy results confirmed well crystallized HA-MWCNT coating and homogenous dispersion of carbon nanotubes in the ceramic matrix at temperatures as low as 500 C. The evaluation of the mechanical properties of HA and HA/MWCNT composite coatings with different weight percentages of MWCNTs showed that the addition of low concentrations of MWCNTs (0.5 and 1 wt.%) had improved effect on the mechanical properties of nanocomposite coatings. Moreover, this in vitro study ascertained the biocompatibility of the prepared sol-gel-derived HA/MWCNT composite coatings.

    Original languageEnglish
    Pages (from-to)2002-2010
    Number of pages9
    JournalMaterials Science and Engineering C
    Volume33
    Issue number4
    Early online date25 Jan 2013
    DOIs
    Publication statusPublished - 1 May 2013

    Keywords

    • CNT
    • Dip coating
    • Hydroxyapatite
    • Nanocomposite
    • Sol-gel
    • Ti-6Al-4V alloy

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