Anticorrosive ZrO 2 and ZrO 2 -SiO 2 layers on titanium substrates for biomedical applications

Długoń, E.; Pach, K.; Gawęda, M.; Jadach, R.; Wajda, Aleksandra; Leśniak, Magdalena; Benko, Aleksandra; Dziadek, Michał; Sowa, Maciej; Simka, Wojciech; Sitarz, Maciej

doi:10.1016/j.surfcoat.2017.10.011

Cited by 25 publications

(6 citation statements)

References 29 publications

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“…In turn, analyzing the obtained results concerning SFE values (Figure 8), it may be presumed that acid etching and machining samples, which displayed the lowest aforementioned parameters among tested specimen, would be less wetted by the given media and, thus, they would provide better protection against corrosion [81,82]. From the other side, one should always remember that body fluids are always water-based.…”

Section: Discussionmentioning

confidence: 98%

The Impact of EBM-Manufactured Ti6Al4V ELI Alloy Surface Modifications on Cytotoxicity toward Eukaryotic Cells and Microbial Biofilm Formation

et al. 2020

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Electron beam melting (EBM) is an additive manufacturing technique, which allows forming customized implants that perfectly fit the loss of the anatomical structure of bone. Implantation efficiency depends not only on the implant’s functional or mechanical properties but also on its surface properties, which are of great importance with regard to such biological processes as bone regeneration or microbial contamination. This work presents the impact of surface modifications (mechanical polishing, sandblasting, and acid-polishing) of EBM-produced Ti6Al4V ELI implants on essential biological parameters. These include wettability, cytotoxicity toward fibroblast and osteoblast cell line, and ability to form biofilm by Staphylococcus aureus, Pseudomonas aeruginosa, and Candida albicans. Obtained results indicated that all prepared surfaces exhibited hydrophilic character and the highest changes of wettability were obtained by chemical modification. All implants displayed no cytotoxicity against osteoblast and fibroblast cell lines regardless of the modification type. In turn, the quantitative microbiological tests and visualization of microbial biofilm by means of electron microscopy showed that type of implant’s modification correlated with the species-specific ability of microbes to form biofilm on it. Thus, the results of the presented study confirm the relationship between such technological aspects as surface modification and biological properties. The provided data are useful with regard to applications of the EBM technology and present a significant step towards personalized, customized implantology practice.

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Section: Discussionmentioning

confidence: 98%

The Impact of EBM-Manufactured Ti6Al4V ELI Alloy Surface Modifications on Cytotoxicity toward Eukaryotic Cells and Microbial Biofilm Formation

et al. 2020

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“…Several protective coatings were applied on titanium surfaces to reduce titanium susceptibility to corrosion. Oxide coatings such as ZrO 2 [10], TiO 2 [11] or Ta 2 O 5 [3] are used as protective coatings to prevent ion release and increase the corrosion resistance of titanium and its alloys. Hernandez-Barrios et al [12] investigated the effect of the immersion and aging time of AZ31 Mg alloys in TEOS and GPTMS solutions.…”

Section: Introductionmentioning

confidence: 99%

Characterization of SiO2 sol-gel coated Ti6Al4V alloy obtained by using TEOS and GPTMS

et al. 2021

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Synthesis of silicon oxide (SiO2) via the sol-gel method and SiO2 coating ability on to Ti6Al4V alloy were investigated, in the novel study. Ti6Al4V alloy is the most used alloy in biomedical applications due to its many advantages. However, it has a minor disadvantage like releasing ions into the human body. In this study, the substrate material Ti6Al4V alloy samples were coated using the sol-gel method with alkoxysilane solutions (tetraethyl orthosilicate, TEOS; Si(OC2H5)4 and glycidoxypropyltrimethoxysilane, GPTMS; C9H20O5Si) containing the unit of prepared Si(OR)n after the surface preparations were made. The prepared solutions were examined using thermal analysis methods and the process temperatures to be applied to the coatings were determined according to the results of the analysis. Coated samples were subjected to aging, drying, and sintering processes at specified temperatures. The morphologies and structures of the samples were investigated by using a scanning electron microscope with energy-dispersive spectroscopy (SEM-EDS) and X-ray diffraction (XRD). The sol-gel coating ability of the silicon oxide on the surface of the Ti6Al4V alloys has been discussed. The results demonstrate that cracks were observed in coating produced by TEOS precursor whereas the coatings used GPTMS precursor exhibited crack-free surface independently of dipping number. The crack formation tended to reduce with increasing dipping number of coatings produced by TEOS precursor. Distances between coating islets gradually became smaller as the number of dippings increased, and the continuity of the coatings increased. It has been observed that SiO2 coating layers produced with GPTMS are obtained in a more continuous and crack-free form than the layers produced with TEOS.

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“…In the literature are some works related to the stabilization of the tetragonal phase of zirconia with silica, which may be better than other additives, because the silica does not affect the structure of zirconia [10][11][12][13]. Additionally, it is known that silica has a high corrosion resistance as well as good biological properties [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, it is known that silica has a high corrosion resistance as well as good biological properties [14][15][16][17]. E. Długoń et al [11] reported that ceramic coatings composed of zirconia and zirconia-silica were used to improve the corrosion resistance of titanium implants, while in the work of M.F. Morks et al [18], zirconia and silica powders were mixed and plasma sprayed by using a gas tunnel plasma system to coat an SUS 304 substrate, and the microstructure, mechanical properties and in vitro behavior of the composite coatings were evaluated.…”

Section: Introductionmentioning

confidence: 99%

Coating of Titanium Substrates with ZrO2 and ZrO2-SiO2 Composites by Sol-Gel Synthesis for Biomedical Applications: Structural Characterization, Mechanical and Corrosive Behavior

et al. 2019

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The use of metallic materials as implants presents some major drawbacks, such as their harmful effects on the living organism, especially those induced by corrosion. To overcome this problem, the implant surface of titanium implants can be improved using a coating of bioactive and biocompatible materials. The aim of this work is the synthesis of SiO2/ZrO2 composites with different percentages of zirconia matrix (20, 33 and 50 wt.%), by the sol-gel method to coat commercial Grade 4 titanium disks using a dip coater. Attenuated total reflectance Fourier transform infrared (ATR/FTIR) spectroscopy was used to evaluate the interactions between the inorganic matrices. Furthermore, the mechanical properties and corrosive behavior of the SiO2/ZrO2 coatings were evaluated as a function of the ZrO2 content. The bioactive properties of the substrate coated with different composites were evaluated using simulated body fluid (SBF). The antibacterial activity was tested against gram-negative and gram-positive Escherichia coli and Enterococcus faecalis, respectively, to assess the release of toxic products from the different composites and to evaluate the possibility of using them in the biomedical field.

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Anticorrosive ZrO 2 and ZrO 2 -SiO 2 layers on titanium substrates for biomedical applications

Cited by 25 publications

References 29 publications

The Impact of EBM-Manufactured Ti6Al4V ELI Alloy Surface Modifications on Cytotoxicity toward Eukaryotic Cells and Microbial Biofilm Formation

The Impact of EBM-Manufactured Ti6Al4V ELI Alloy Surface Modifications on Cytotoxicity toward Eukaryotic Cells and Microbial Biofilm Formation

Characterization of SiO2 sol-gel coated Ti6Al4V alloy obtained by using TEOS and GPTMS

Coating of Titanium Substrates with ZrO2 and ZrO2-SiO2 Composites by Sol-Gel Synthesis for Biomedical Applications: Structural Characterization, Mechanical and Corrosive Behavior

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