Open AccessComparative analysis of platelets adhesion to the surface of Ta-based ceramic coatings deposited by magnetron sputtering
Author(s) -
А. Zykova,
V. Safonov,
S. Yakovin,
С.В. Дудин,
G. B. Melnikova,
A. S. Petrovskaya,
T. N. Tolstaya,
Т. А. Кузнецова,
С. А. Чижик,
N Donkov
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1492/1/012038
Subject(s) - wetting , materials science , contact angle , adhesion , surface energy , surface roughness , ceramic , scanning electron microscope , composite material , sputter deposition , energy dispersive x ray spectroscopy , surface finish , chemical engineering , analytical chemistry (journal) , sputtering , nanotechnology , thin film , chemistry , engineering , chromatography
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, Ta 2 O 5 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.