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Nanomaterials 2017, 7(4), 90; doi:10.3390/nano7040090

Bioactivity Studies on Titania Coatings and the Estimation of Their Usefulness in the Modification of Implant Surfaces

1
Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland
2
Nano-Implant Ltd. Gagarina 5, 87-100 Toruń, Poland
3
Faculty of Biology and Environmental Protection, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland
4
Laboratory of Infectious Biology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Łódź, Poland
*
Author to whom correspondence should be addressed.
Academic Editors: Hicham Fenniri and Adam Ekenseair
Received: 3 March 2017 / Revised: 14 April 2017 / Accepted: 18 April 2017 / Published: 22 April 2017
(This article belongs to the Special Issue Nanofibrous Scaffolds for Biomedical Application)
View Full-Text   |   Download PDF [3224 KB, uploaded 26 April 2017]   |  

Abstract

Morphologically different titania coatings (nanofibers (TNFs), nanoneedles (TNNs), and nanowires (TNWs)) were studied as potential biomedical materials. The abovementioned systems were produced in situ on Ti6Al4V substrates via direct oxidation processes using H2O2 and H2O2/CaCl2 agents, and via thermal oxidation in the presence of Ar and Ar/H2O2. X-ray diffraction and Raman spectroscopy have been used to structurally characterize the produced materials. The morphology changes on the titanium alloy surface were investigated using scanning electron microscopy. The bioactivity of the samples has been estimated by the analysis of the produced titania coatings’ biocompatibility, and by the determination of their ability to reduce bacterial biofilm formation. The photoactivity of the produced nanocoatings was also analyzed, in order to determine the possibility of using titania coated implant surfaces in the sterilization process of implants. Photocatalytic activity was estimated using the methylene blue photodegradation kinetics, in the presence of UV light. View Full-Text
Keywords: titania; nanofibers; nanowires; thermal oxidation; Ti6Al4V titania; nanofibers; nanowires; thermal oxidation; Ti6Al4V
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Radtke, A.; Topolski, A.; Jędrzejewski, T.; Kozak, W.; Sadowska, B.; Więckowska-Szakiel, M.; Piszczek, P. Bioactivity Studies on Titania Coatings and the Estimation of Their Usefulness in the Modification of Implant Surfaces. Nanomaterials 2017, 7, 90.

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