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Registration Number

0224U033274, (0124U004358) , R & D reports

Title

Development of the latest titanium implants for osteosynthesis with a surface modified with a magnesium alloy and nanoparticles of silver and copper

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Відпрацювання методики отримання магнієвих сплавів системи Mg-Ga-Zn-Ca індукційним плавленням; адаптація обладнання та оптимізація параметрів процесу електронно-променевого осадження у вакуумі для нанесення біологічно активних покриттів. Підготовка проміжного звіту, доповідей, патентів, публікацій.

Head

Hornostai Oleksii V., Кандидат технічних наук

Registration Date

23-12-2024

Organization

E. O. Paton Elektric Welding Institute National Academy of scinces of Ukraine

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The goal of the project is to modify the surface of titanium implants for osteosynthesis with a magnesium-based alloy with the addition of silver and copper nanoparticles to improve bone regeneration, corrosion resistance, biocompatibility, and antibacterial properties of the implants.

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 Magnesium alloys of the Mg-Ga-Zn-Ca system were produced via induction melting in a high-purity argon atmosphere with bubbling and stirring. The results of the analyses of the obtained ingots demonstrate a homogeneous distribution of alloying elements and the absence of critical structural defects. The actual elemental composition of the ingots deviates by ±17% from the planned composition. The established elemental composition meets the required specifications, with the microstructure characterized by globular grains (20…30 μm) and elongated dendritic grains (10 μm). The mechanical properties of the magnesium alloys were determined as follows: Young’s modulus E=51…54 GPa, microhardness H=1.87…2 GPa, and plasticity coefficient k=0.84…0.86. The alloys exhibit a Young’s modulus that exceeds the values of traditional alloys, such as MA2-1, ML-5 and ML-10, by 10%, demonstrating improved mechanical properties. In addition, equipment was adapted for the application of biologically active nanocoatings of silver and copper via vacuum electron-beam deposition. The developed technological scheme with a directed vapor flow improves the efficiency of material usage during evaporation by 2…3 times. This represents a significant achievement in the creation of cost-effective coatings, particularly for the deposition of expensive materials. The obtained results unequivocally confirm the feasibility of modifying implant surfaces to ensure improved biodegradability, osseointegration, and antimicrobial properties, thereby enhancing their effectiveness in treating complex fractures, including combat injuries. These achievements lay the groundwork for the implementation of the next stages of the project.

Product Description

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Hornostai Oleksii V.
Dyman Marianna M.
Stelmakh Yaroslav A.
Khokhlov Maksym A.

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2024-12-23