Graphitic carbon in a nanostructured titanium oxycarbide thin film to improve implant osseointegration
| Autor: | Caterina Alexandra Ioannidu, Letterio S. Politi, Roberto Scandurra, Giovanni Longo, Luca Mazzola, Carlo Misiano, Robertino Zanoni, Mauro Falconieri |
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| Přispěvatelé: | Falconieri, M. |
| Rok vydání: | 2014 |
| Předmět: |
Materials science
Surface Properties Cells chemistry.chemical_element Bioengineering Nanotechnology Biocompatible Materials engineering.material Microscopy Atomic Force Electron Osseointegration Carbide Biomaterials X-ray photoelectron spectroscopy Coating Cells Cultured Humans Microscopy Electron Scanning Photoelectron Spectroscopy Carbon Graphite Nanostructures Prostheses and Implants Titanium Materials Science (all) Condensed Matter Physics Mechanics of Materials Mechanical Engineering Scanning afm Thin film Microscopy Cultured Ion plating Atomic Force Sputter deposition chemistry Chemical engineering xps engineering |
| Zdroj: | Materials science & engineering. C, Biomimetic materials, sensors and systems 46 (2015): 409–416. doi:10.1016/j.msec.2014.10.073 info:cnr-pdr/source/autori:Zanoni, R.; Ioannidu, C. A.; Mazzola, L.; Politi, L.; Misiano, C.; Longo, G.; Falconieri, M.; Scandurra, R./titolo:Graphitic carbon in a nanostructured titanium oxycarbide thin film to improve implant osseointegration/doi:10.1016%2Fj.msec.2014.10.073/rivista:Materials science & engineering. C, Biomimetic materials, sensors and systems (Print)/anno:2015/pagina_da:409/pagina_a:416/intervallo_pagine:409–416/volume:46 |
| ISSN: | 1873-0191 |
| DOI: | 10.1016/j.msec.2014.10.073 |
| Popis: | A nanostructured coating layer on titanium implants, able to improve their integration into bones and to protect against the harsh conditions of body fluids, was obtained by Ion Plating Plasma Assisted, a method suitable for industrial applications. A titanium carbide target was attached under vacuum to a magnetron sputtering source powered with a direct current in the 500-1100 W range, and a 100 W radio frequency was applied to the sample holder. The samples produced at 900 W gave the best biological response in terms of overexpression of some genes of proteins involved in bone turnover. We report the characterization of a reference and of an implant sample, both obtained at 900 W. Different micro/nanoscopic techniques evidenced the morphology of the substrates, and X-ray Photoelectron Spectroscopy was used to disclose the surface composition. The layer is a 500 nm thick hard nanostructure, composed of 60% graphitic carbon clustered with 15% TiC and 25% Ti oxides. (C) 2014 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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