Comparative analysis of platelets adhesion to the surface of Ta-based ceramic coatings deposited by magnetron sputtering

The adhesion of platelets to the surface of implants and stents depends on the material's properties, such as surface roughness, topography and wettability. The present study analyzes the composition and surface properties of nanostructured Ta, Ta2O5 and TaON coatings and their correlation with...

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Bibliographic Details
Published in:Journal of physics. Conference series 2020-04, Vol.1492 (1), p.12038
Main Authors: Zykova, A, Safonov, V, Yakovin, S, Dudin, S, Melnikova, G, Petrovskaya, A, Tolstaya, T, Kuznetsova, T, Chizhik, S A, Donkov, N
Format: Article
Language:English
Subjects:
Adhesion
Atomic force microscopy
Ceramic coatings
Chemical composition
Contact angle
Free energy
In vitro methods and tests
Magnetron sputtering
Microscopy
Morphology
Physics
Platelets
Scanning microscopy
Surface properties
Surface roughness
Surgical implants
Tantalum
Tantalum oxides
Topography
Wettability
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Summary:The adhesion of platelets to the surface of implants and stents depends on the material's properties, such as surface roughness, topography and wettability. The present study analyzes the composition and surface properties of nanostructured Ta, Ta2O5 and TaON coatings and their correlation with the adhesion of platelets. The surface morphology and topography were observed by atomic force microscopy and electron scanning microscopy; while the elemental distribution and chemical composition were analyzed by energy dispersive X-ray spectroscopy. The coated surfaces' advancing contact angles were evaluated by tensiometric measurements. The surface free energy (SFE) was calculated by the Owens, Wendt, Rabel and Kaeble method. The results of in vitro tests demonstrated that the deposition of Ta-based coatings leads to a decrease in the platelets adhesion and agglomeration ability.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1492/1/012038