Abstract
The effect of 6 types of jet treatment and electrolytic plasma polishing on the roughness and wettability of the surface and interaction with the bacterium Escherichia coli of two commercial titanium-based alloys used in medicine, VT1-0 (pure titanium) and VT6 (titanium alloy with aluminum and vanadium) and Ti alloy developed at IMET RAS was studied-Nb-Zr. It is noted that all created surfaces are wettable, the wetting angle is naturally higher the lower the surface roughness, however, in the case of all materials after sandblasting with mixtures with a wide range of particles in size, an increase in the wetting angle is noted. All metal samples do not have antibacterial activity and do not contribute to the formation of a sterile zone. However, when studying the ability to form biofilms from the bacterium Escherichia coli on the surface of metals. It was found out that their number is significantly lower compared to the control, which was cultivated under ideal conditions for the growth of this bacterium. The alloy under development, which potentially has better biomechanical compatibility than the commercial ones used, did not show a deterioration in surface characteristics and an effect on the growth of bacteria.
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