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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

Abrishamchian, A ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1016/j.msec.2013.01.014
  3. Publisher: 2013
  4. Abstract:
  5. 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
  6. Keywords:
  7. Nanocomposite ; Titanium alloy (TiAl6V4) ; Sol-gel ; Ti-6Al-4V alloy ; Biomedical applications ; CNT ; Homogenous dispersions ; Nano-composite coating ; Structural characterization ; Weight percentages ; Aluminum ; Biocompatibility ; Composite coatings ; Electron microscopy ; Mechanical properties ; Medical applications ; Multiwalled carbon nanotubes (MWCN) ; Nanocomposites ; Sol-gel process ; Sol-gels ; Titanium alloys ; Aluminum coatings ; Biomaterial ; Hydroxyapatite ; Titanium ; Dip coating ; Carbon nanotube ; Atomic force microscopy ; Chemistry ; Cytology ; Drug effects ; Hardness ; Human ; Infrared spectroscopy ; Medical technology ; Phase transition ; Static electricity ; Ultrastructure ; Young modulus ; Drug effect ; Durapatite ; Elastic Modulus ; Humans ; Biomedical technology ; Coated materials, biocompatible ; Materials testing ; Mesenchymal Stromal Cells ; Microscopy, Atomic Force ; Nanotubes, Carbon ; Spectroscopy, Fourier Transform Infrared ; X-Ray Diffraction
  8. Source: Materials Science and Engineering C ; Volume 33, Issue 4 , 2013 , Pages 2002-2010 ; 09284931 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0928493113000271