Micro-Arc Zn- and Ag-Containing Coatings for Implants with Complex Porous Architecture Obtained by 3D Printing Method from Titanium Alloy

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Abstract

Relevance. The creation of porous three-dimensional materials for bone defects compensation and its subsequent regeneration is an important direction of medical materials science. The key issue in the interaction of an implant and bone tissue is the surface properties of the implant.

The purpose of the study is to evaluate the physicochemical properties and compatibility of tissues of a living organism and porous implants with calcium phosphate Zn- and Ag-containing formed by microarc oxidation.

Materials and Methods. Implants with various types of porous structure were made by direct laser sintering of titanium alloy Ti-6Al-4V powders. The calcium phosphate coatings, including Zn- and Ag-containing, were formed on the implants surface by microarc oxidation.

Results. Coatings, deposited in electrolytes of various compositions, were uniformly distributed over the implants mesh structure. The phase composition of Zn-containing coatings, deposited in the acidic electrolyte, was represented by amorphous calcium phosphates. Ag-containing coatings, deposited in the alkaline electrolyte, had an amorphous-crystalline structure, the crystalline phase of which was identified as tricalcium phosphate in the α and β modifications. The samples of extracts of calcium phosphate Zn and Ag-containing coatings were co-cultured with pFb line of the human postnatal fibroblasts for 48 hours at 37°C in 5% CO2 atmosphere. The MTT test revealed a high metabolic activity of the co-cultured fibroblasts in comparison with the fibroblasts of control.

Conclusion. The pFb line of the human postnatal fibroblasts retained their viability for 48 hours of co-culturing with calcium-phosphate Zn- and Ag-containing coatings. The tested product and its components did not negatively affect the cellular respiration. However, further studies are needed to determine the rate of bioresorption and the degree of antibacterial activity of calcium-phosphate Zn- and Ag-containing coatings.

About the authors

Yu. P. Sharkeev

Institute of Strength Physics and Materials;
National Research Tomsk Polytechnic University

Email: fake@neicon.ru

Yurii P. Sharkeev — Dr. Sci. (Phys.-Math.), Professor, Head of the Laboratory of Physics of Nanostructured Biocomposites; Professor

Tomsk

Russian Federation

M. B. Sedelnikova

Institute of Strength Physics and Materials

Email: fake@neicon.ru

Mariya B. Sedelnikova — Dr. Sci. (Tech.), Assistant Professor, Senior Researcher, Laboratory of Physics of Nanostructured Biocomposites

Tomsk

Russian Federation

T. V. Tolkacheva

Institute of Strength Physics and Materials

Email: fake@neicon.ru

Tatyana V. Tolkacheva — Leading Technologist, Laboratory of Physics of Nanostructured Biocomposites

Tomsk

Russian Federation

N. A. Shcheglova

Logeeks Medical Systems

Email: fake@neicon.ru

Natalya A. Shcheglova — Development Director

Novosibirsk

Russian Federation

A. A. Panchenko

Logeeks Medical Systems

Email: fake@neicon.ru

Andrey A. Panchenko — Technical Director

Novosibirsk

Russian Federation

I. B. Krasovsky

Logeeks Medical Systems

Email: fake@neicon.ru

Igor B. Krasovsky — Director

Novosibirsk

Russian Federation

М. V. Solomatina

Federal Research Center of Fundamental and Translational Medicine

Email: fake@neicon.ru

Мaria V. Solomatina — Cand. Sci. (Biol.), Researcher, Department of Development and Testing of Pharmacological Agents

Novosibirsk

Russian Federation

M. V. Efimenko

Tsivyan Novosibirsk Research Institute of Traumatology and Orthopedics

Email: fake@neicon.ru

Maxim V. Efimenko — Orthopedic Surgeon, Department of Traumatology and Orthopedics

Novosibirsk

Russian Federation

V. V. Pavlov

Tsivyan Novosibirsk Research Institute of Traumatology and Orthopedics

Email: fake@neicon.ru

Vitaliy V. Pavlov — Dr. Sci. (Med.), Head of the Research Department

Novosibirsk

Russian Federation

L. A. Cherdantseva

Federal Research Center of Fundamental and Translational Medicine;
Tsivyan Novosibirsk Research Institute of Traumatology and Orthopedics

Email: fake@neicon.ru

Liliya A. Cherdantseva — Cand. Sci. (Med.), Head of the Laboratory for the Procurement and Preservation of Tissues; Researcher

Novosibirsk

Russian Federation

I. A. Kirilova

Tsivyan Novosibirsk Research Institute of Traumatology and Orthopedics

Author for correspondence.
Email: IKirilova@niito.ru

Irina A. Kirilova — Dr. Sci. (Med.), Deputy Director

Novosibirsk

Russian Federation

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