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Coatings 2018, 8(5), 159; https://doi.org/10.3390/coatings8050159

Multi-Walled Carbon Nanotube Coating on Alkali Treated TiO2 Nanotubes Surface for Improvement of Biocompatibility

1,2,3,4,†
,
1,2,3,4,†
,
1,2,3,4
and
1,2,3,4,*
1
Department of Dental Biomaterials, School of Dentistry, Chonbuk National University, Jeonju 54896, Korea
2
Institute of Biodegradable Material, School of Dentistry, Chonbuk National University, Jeonju 54896, Korea
3
Institute of Oral Bioscience, School of Dentistry, Chonbuk National University, Jeonju 54896, Korea
4
BK21 Plus Project, School of Dentistry, Chonbuk National University, Jeonju 54896, Korea
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Received: 27 March 2018 / Revised: 13 April 2018 / Accepted: 19 April 2018 / Published: 26 April 2018
(This article belongs to the Special Issue Carbon-Related Coatings)
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Abstract

The aim of this study is to enhance the bioactivity of pure titanium using multiple surface treatments for the application of the implant. To form the biofunctional multilayer coating on pure titanium, anodization was conducted to make titanium dioxide nanotubes, then multi-walled carbon nanotubes were coated using a dipping method after an alkali treatment. The surface characteristics at each step were analyzed using a field emission scanning electron microscope and X-ray diffractometer. The effect of the multilayer coating on the biocompatibility was identified using immersion and cytotoxicity tests. Better hydroxyapatite formation was observed on the surface of multilayer-coated pure titanium compared to non-treated pure titanium after immersion in the simulated body fluid. Improvement of biocompatibility by multiple surface treatments was identified through various cytotoxicity tests using osteoblast cells. View Full-Text
Keywords: anodization; TiO2 nanotubes; alkali treatment; carbon nanotube; biocompatibility anodization; TiO2 nanotubes; alkali treatment; carbon nanotube; biocompatibility
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Park, J.-E.; Jang, Y.-S.; Bae, T.-S.; Lee, M.-H. Multi-Walled Carbon Nanotube Coating on Alkali Treated TiO2 Nanotubes Surface for Improvement of Biocompatibility. Coatings 2018, 8, 159.

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