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Article

Morphology and Structure of TiO2 Nanotube/Carbon Nanostructure Coatings on Titanium Surfaces for Potential Biomedical Application

1
Faculty of Dental Medicine, Medical University of Varna, 55 M. Drinov Str., 9000 Varna, Bulgaria
2
CSS Nanotech Inc., Unit 427, 2368A Rice Blvd., Houston, TX 77005-2652, USA
3
Department of Chemistry, University of Mining and Geology, 1700 Sofia, Bulgaria
*
Authors to whom correspondence should be addressed.
Materials 2024, 17(6), 1290; https://doi.org/10.3390/ma17061290
Submission received: 29 January 2024 / Revised: 28 February 2024 / Accepted: 7 March 2024 / Published: 11 March 2024

Abstract

Titanium is the most used material for implant production. To increase its biocompatibility, continuous research on new coatings has been performed by the scientific community. The aim of the present paper is to prepare new coatings on the surfaces of the pure Ti Grade 2 and the Ti6Al4V alloy. Three types of coatings were achieved by applying anodization and chemical vapor deposition (CVD) methods: TiO2 nanotubes (TNTs) were formed by anodization, carbon nanotubes (CNTs) were obtained through a metal-catalyst-free CVD process, and a bilayer coating (TiO2 nanotubes/carbon nanostructures) was prepared via successive anodization and CVD processes. The morphology and structure of the newly developed coatings were characterized using SEM, EDX, AFM, XRD, and Raman spectroscopy. It was found that after anodization, the morphology of the TiO2 layer on pure Ti consisted of a “sponge-like” structure, nanotubes, and nano-rods, while the TNTs layer on the Ti alloy comprised mainly nanotubes. The bilayer coatings on both materials demonstrated different morphologies: the pure Ti metal was covered by a layer of nanotubular and nano-rod TiO2 structures, followed by a dense carbon layer decorated with carbon nanoflakes, and on the Ti alloy, first, a TNTs layer was formed, and then carbon nano-rods were deposited using the CVD method.
Keywords: titanium and Ti6Al4V alloy; implant coatings; anodization; CVD process; titanium nanotubes; carbon nanostructures titanium and Ti6Al4V alloy; implant coatings; anodization; CVD process; titanium nanotubes; carbon nanostructures

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MDPI and ACS Style

Dikova, T.; Hashim, D.P.; Mintcheva, N. Morphology and Structure of TiO2 Nanotube/Carbon Nanostructure Coatings on Titanium Surfaces for Potential Biomedical Application. Materials 2024, 17, 1290. https://doi.org/10.3390/ma17061290

AMA Style

Dikova T, Hashim DP, Mintcheva N. Morphology and Structure of TiO2 Nanotube/Carbon Nanostructure Coatings on Titanium Surfaces for Potential Biomedical Application. Materials. 2024; 17(6):1290. https://doi.org/10.3390/ma17061290

Chicago/Turabian Style

Dikova, Tsanka, Daniel P. Hashim, and Neli Mintcheva. 2024. "Morphology and Structure of TiO2 Nanotube/Carbon Nanostructure Coatings on Titanium Surfaces for Potential Biomedical Application" Materials 17, no. 6: 1290. https://doi.org/10.3390/ma17061290

APA Style

Dikova, T., Hashim, D. P., & Mintcheva, N. (2024). Morphology and Structure of TiO2 Nanotube/Carbon Nanostructure Coatings on Titanium Surfaces for Potential Biomedical Application. Materials, 17(6), 1290. https://doi.org/10.3390/ma17061290

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