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Surface Modification of Titanium Carbide with Carbyne-Containing Nanocoatings

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Abstract:

The aim of this research is to investigate a novel approach to surface engineering of biomaterials that are based on transition metals of the groups IVA-VIA. The approach taken relies on the fact that, during the electropolishing of TiC surfaces, the removal of Ti atoms from the TiC surface surpasses that of C atoms. This leads to enrichment of the TiC surface with carbon. Transmission electron microscopic investigation showed that carbon-based films contain carbynes in the form of nanorod-like clusters with lengths in the range of 5-100 nm. This carbyne-containing layer is 50-100 nm thick. It was generalized that carbyne-containing nanofilms are formed on the carbide surface of transition metals of groups IVA-VIA during electropolishing. Since carbynes, being onedimensional chain-like structures [(-C≡C-)n/(=C=C=)n] with sp1 carbon-carbon hybridization, have the highest degree of biocompatibility because of their biological activity, the development of such surface bioengineering with carbynes extends applications of biomaterials based on transition metals of the groups IVA-VIA.

Keywords: BIOCOMPATIBILITY; BIOMATERIALS; CARBYNES; CHAOITE; ELECTROPOLISHING; NANOCLUSTER; NANOCOATING; NANOLAYER; NANOSTRUCTURE; SP1-HYBRIDIZATION; TI-BASED BIOMATERIALS; TRANSITION METAL CARBIDES; TRANSITION METALS; TRANSMISSION ELECTRON MICROSCOPY

Document Type: Communications

DOI: https://doi.org/10.1166/jnn.2002.098

Affiliations: Industrial Research Institute Swinburne, Swinburne University of Technology, Melbourne, Australia

Publication date: 2002-04-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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