Additively manufactured porous titanium 3D–scaffolds with antibacterial Zn-, Ag- calcium phosphate biocoatings

Sedelnikova, M. B.; Sharkeev, Yu. P.; Толкачева, Т. В.; Уваркин, П. В.; Chebodaeva, Valentina V.; Prosolov, Konstantin A.; Бакина, О. В.; Kashin, Alexander; Щеглова, Н. А.; Panchenko, Alexander; Соломатина, М. В.; Efimenko, M.V.; Павлов, В. В.; Черданцева, Л. А.; Кирилова, И. А.

doi:10.1016/j.matchar.2022.111782

Cited by 14 publications

(5 citation statements)

References 48 publications

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“…Bioinert implants do not react with surrounding tissues in the human body. Bioinert materials for manufacturing implants include titanium (Ti) and its alloys, as well as some steels [14][15][16][17][18][19]. Their benefits include high specific strength and good biocompatibility.…”

Section: Introductionmentioning

confidence: 99%

Porous Biocoatings Based on Diatomite with Incorporated ZrO2 Particles for Biodegradable Magnesium Implants

Sedelnikova

Kashin

Уваркин

et al. 2023

JFB

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In the present work, the surface of a biodegradable Mg alloy was modified to create porous diatomite biocoatings using the method of micro-arc oxidation. The coatings were applied at process voltages in the range of 350–500 V. We have studied the influence of the addition of ZrO2 microparticles on the structure and properties of diatomite-based protective coatings for Mg implants. The structure and properties of the resulting coatings were examined using a number of research methods. It was found that the coatings have a porous structure and contain ZrO2 particles. The coatings were mostly characterized by pores less than 1 μm in size. However, as the voltage of the MAO process increases, the number of larger pores (5–10 μm in size) also increases. However, the porosity of the coatings varied insignificantly and amounted to 5 ± 1%. It has been revealed that the incorporation of ZrO2 particles substantially affects the properties of diatomite-based coatings. The adhesive strength of the coatings has increased by approximately 30%, and the corrosion resistance has increased by two orders of magnitude compared to the coatings without zirconia particles.

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Section: Introductionmentioning

confidence: 99%

Porous Biocoatings Based on Diatomite with Incorporated ZrO2 Particles for Biodegradable Magnesium Implants

Sedelnikova

Kashin

Уваркин

et al. 2023

JFB

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“…Some researchers have improved the antibacterial effects of 3D printed materials by adding coatings to their surfaces. Sedelnikova et al (2022) created Zn-and Ag-containing coatings on the surface of 3D printing materials using the MAO method. It confirmed that the material has good biocompatibility and high antibacterial activity against MRSA and E. coli.…”

Section: Antibacterial Effects Of 3d Printing Materialsmentioning

confidence: 99%

Biological properties of Cu-bearing and Ag-bearing titanium-based alloys and their surface modifications: A review of antibacterial aspect

Yan

et al. 2022

Front. Mater.

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The use of titanium dental implants to replace missing teeth represents an important field of daily dental practice worldwide, which is highly reliable for long-term survival and success rates. However, titanium dental implants still have intrinsic problems that cannot meet the clinical requirements. Improving the performance of implants is an increasingly important area of dental research to reduce infection rates. Improved properties can be achieved by two main methods: 1) the overall change in the materials by changing the elemental composition and 2) surface modifications. This review provides an overview of various titanium-based alloys that have been employed to achieve a higher survival rate of implantation by adding elements or modifying the surface, with a special focus on their antibacterial applications. Recent developments in titanium-based alloys containing various antibacterial agents have been described in detail, including Cu-bearing, Ag-bearing, and Zr-bearing Ti alloys. Moreover, the applications of bioactive coatings and 3D printing materials with antibacterial properties are reviewed. This review aims to highlight the antibacterial challenges associated with titanium-based alloys to promote the further development and clinical application of antibacterial alloys.

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“…The most widely used coatings in the field of micro-arc coating research are the ones synthesized in electrolytes based on phosphates, silicates, and, a little less common, aluminates [26][27][28][29][30][31][32][33]. Aluminate-based electrolytes are typically used to produce wear resistant MAO coatings due to the dominant formation of MgAl2O4 as a very solid phase.…”

Section: Introductionmentioning

confidence: 99%

Functionalizing Diatomite-Based Micro-Arc Coatings for Orthopedic Implants: Influence of TiO<sub>2</sub> Addition

Kashin¹,

Sedelnikova²,

Уваркин³

et al. 2023

Preprint

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The method of micro-arc oxidation has been utilized to synthesize a protective biocompatible coating for a bioresorbable orthopedic Mg implant. This paper presents the results of a comprehensive research of micro-arc coatings based on diatomite – a biogenic material consisting of shells of diatom microalgae. The main focus of this study was the functionalization of diatomite-based micro-arc coatings by incorporating the particles of titania (TiO2) into them. Various properties of the resulting coatings were examined and evaluated. The XRD analysis has revealed the formation of a new magnesium orthosilicate phase – forsterite (Mg2SiO4). It has been established that the corrosion current density of the coatings has decreased by 2-4 orders of magnitude after the inclusion of TiO2 particles, depending on the coating process voltage. The adhesion strength of the coatings has increased following the particle incorporation. The processes of dissolution of both coated and uncoated samples in a sodium chloride solution were studied. The in vitro cell viability was assessed, which showed that the coatings significantly reduce the cytotoxicity of Mg samples.

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Additively manufactured porous titanium 3D–scaffolds with antibacterial Zn-, Ag- calcium phosphate biocoatings

Cited by 14 publications

References 48 publications

Porous Biocoatings Based on Diatomite with Incorporated ZrO2 Particles for Biodegradable Magnesium Implants

Porous Biocoatings Based on Diatomite with Incorporated ZrO2 Particles for Biodegradable Magnesium Implants

Biological properties of Cu-bearing and Ag-bearing titanium-based alloys and their surface modifications: A review of antibacterial aspect

Functionalizing Diatomite-Based Micro-Arc Coatings for Orthopedic Implants: Influence of TiO<sub>2</sub> Addition

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