A functionalized duplex coating on CP-titanium for biomedical applications

Cheraghali, B.; Ghasemi, H.M.; Abedini, M.; Yazdi, R.

doi:10.1016/j.surfcoat.2020.126117

Cited by 11 publications

(10 citation statements)

References 48 publications

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“…Their study found that the corrosion rate of the anodised samples was significantly lower than that of thermally oxidised titanium, which explains why the mechanical biocompatibility was lower. To overcome this specific issue, a duplex coating has been proposed [285] where before anodisation, the cp-Ti substrate was thermally oxidised. Cheraghali et al reported that a low capacity for plastic deformation of the oxide phases formed on the surface prevented plastic deformation, and consequently no plastic deformation and no grooves were observed on the surfaces of thermally oxidised/anodised samples.…”

Section: Techniques To Enhance Mechanical Stability Of Anodic Tio 2 Layermentioning

confidence: 99%

“…Cheraghali et al reported that a low capacity for plastic deformation of the oxide phases formed on the surface prevented plastic deformation, and consequently no plastic deformation and no grooves were observed on the surfaces of thermally oxidised/anodised samples. The oxygen's diffusion from thermal oxidation caused a lowering of the active slip systems in titanium, which caused the 'c to a' ratio for hexagonal closed packed (HCP) of the anodised titanium substrate to increase by over 1.588 [285]. The cp-Ti has a lower tribocorrosion rate at different sliding distances of 16-76% when thermally oxidised [285].…”

Section: Techniques To Enhance Mechanical Stability Of Anodic Tio 2 Layermentioning

confidence: 99%

“…Hirakata et al [155] proposed the stress-based fracture model considering graded, porous and discrete structures of the nanotube arrays of TNTs together with the phenomenological densification model to describe the apparent stress-strain relationship of the indented regions and showed that this could mitigate the microrupture phenomenon. For anodised titanium, this microrupture is directly correlated to the coating brittleness (fracture is likely due to low tensile strength and low fracture toughness) and the fabrication of a crack-free anodic TiO 2 layer is still a huge challenge [155,285].…”

Section: Weeksmentioning

confidence: 99%

“…In terms of wear behaviour of anodised titanium in body fluids, Cheraghali et al. confirms that the anodised samples wear more and have a higher tribocorrosion rate than thermally oxidised titanium, but have the highest cell viability [ 285 ]. Their study found that the corrosion rate of the anodised samples was significantly lower than that of thermally oxidised titanium, which explains why the mechanical biocompatibility was lower.…”

Section: Current Challenges In Using Tio 2 Anodic Layermentioning

confidence: 99%

Section: Current Challenges In Using Tio 2 Anodic Layermentioning

confidence: 99%

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Evolution of anodised titanium for implant applications

Alipal

Lee

Koshy

et al. 2021

Heliyon

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Anodised titanium has a long history as a coating structure for implants due to its bioactive and ossified surface, which promotes rapid bone integration. In response to the growing literature on anodised titanium, this article is the first to revisit the evolution of anodised titanium as an implant coating. The review reports the process and mechanisms for the engineering of distinctive anodised titanium structures, the significant factors influencing the mechanisms of its formation, bioactivity, as well as recent pre-and post-surface treatments proposed to improve the performance of anodised titanium. The review then broadens the discussion to include future functional trends of anodised titanium, ranging from the provision of higher surface energy interactions in the design of biocomposite coatings (template stencil interface for mechanical interlock) to techniques for measuring the boneto-implant contact (BIC), each with their own challenges. Overall, this paper provides up-to-date information on the impacts of the structure and function of anodised titanium as an implant coating in vitro and in/ex vivo tests, as well as the four key future challenges that are important for its clinical translations, namely (i) techniques to enhance the mechanical stability and (ii) testing techniques to measure the mechanical stability of anodised titanium, (iii) real-time/in-situ detection methods for surface reactions, and (iv) cost-effectiveness for anodised titanium and its safety as a bone implant coating.

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Section: Techniques To Enhance Mechanical Stability Of Anodic Tio 2 Layermentioning

confidence: 99%

Section: Techniques To Enhance Mechanical Stability Of Anodic Tio 2 Layermentioning

confidence: 99%

Section: Weeksmentioning

confidence: 99%

Section: Current Challenges In Using Tio 2 Anodic Layermentioning

confidence: 99%

Section: Current Challenges In Using Tio 2 Anodic Layermentioning

confidence: 99%

See 3 more Smart Citations

Evolution of anodised titanium for implant applications

Alipal

Lee

Koshy

et al. 2021

Heliyon

View full text Add to dashboard Cite

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The effect of silver nanoparticles on biological and corrosion behavior of electrophoretically deposited hydroxyapatite film on Ti6Al4V

Balaei,

Ghasemi,

Aghdam

et al. 2024

J Mater Sci: Mater Med

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Surface modification of titanium and its alloys has been seriously considered by researchers to improve their biological behaviors, in the past few decades. In present research, hydroxyapatite (HA) based composite coatings with different concentrations of 0, 2, 4, and 6 wt% of silver (Ag) nanoparticles were electrophoretically deposited (EPD) on anodized and non-anodized Ti6Al4V, using a direct current at a voltage of 30 V for 10 min at room temperature. The specimens were then characterized by means of X-ray diffraction (XRD) analysis, Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS). The cell adhesion images and cell viability results showed that HA-Ag composite coatings significantly promoted the biocompatibility of samples compared with the non-anodized and anodized Ti6Al4V. The viabilities of Mg-63 cells on HA-4%Ag coating and bi-layer coating (HA-4%Ag on anodized specimen) were approximately 91% and they were considered as the best coatings in term of biocompatibility. On the other hand, the antibacterial assessments demonstrated that HA-6%Ag coating had the best antibacterial performance compared with other samples. Furthermore, Tafel polarization curves indicated that corrosion resistance of the bi-layer coating was higher than those of the other specimens. The polarization resistance of this coating was about 7 times more than that of theTi6Al4V alloy. Graphical Abstract

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