Surface modification of tantalum pentoxide coatings deposited by magnetron sputtering and correlation with cell adhesion and proliferation in in vitro tests

19th International Summer School on Vacuum, Electron and Ion Technologies

Zykova, A.^1 ; Safonov, V.^1 ; Goltsev, A.^2 ; Dubrava, T.^2 ; Rossokha, I.^2 ; Donkov, N.^3 ; Yakovin, S.^4 ; Kolesnikov, D.^5 ; Goncharov, I.^5 ; Georgieva, V.^6

National Science Center, Kharkov Institute of Physics and Technology, 1 Academicheskaya Str., Kharkov

61108, Ukraine^1

Institute for Problems of Cryobiology and Cryomedicine, NASU, Kharkov, Ukraine^2

Emil Djakov Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee, Sofia

1784, Bulgaria^3

Department of Physical Technologies, Kharkov National University, 4 Svobody Sq., Kharkov

61077, Ukraine^4

Belgorod State National Research University, 85 Pobedy Str., Belgorod

308015, Russia^5

Georgi Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences, 72 Tsarigradsko chaussee blvd., Sofia

1784, Bulgaria^6

关键词: Bone marrow cells;    Deposited coatings;    Reactive magnetron sputtering;    Structural parameter;    Tantalum pentoxide;    Total surface free energies;    X ray diffraction profile;    X ray photoelectron spectra;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/700/1/012027/pdf
DOI  :  10.1088/1742-6596/700/1/012027

来源: IOP

【 摘 要 】

The effect was analyzed of surface treatment by argon ions on the surface properties of tantalum pentoxide coatings deposited by reactive magnetron sputtering. The structural parameters of the as-deposited coatings were investigated by means of transmission electron microscopy, atomic force microscopy and scanning electron microscopy. X-ray diffraction profiles and X-ray photoelectron spectra were also acquired. The total surface free energy (SFE), the polar, dispersion parts and fractional polarities, were estimated by the Owens-Wendt-Rabel-Kaeble method. The adhesive and proliferative potentials of bone marrow cells were evaluated for both Ta2O5coatings and Ta2O5coatings deposited by simultaneous bombardment by argon ions in in vitro tests.