Biocompatibility, Bioactivity and Corrosion Resistance of Stainless Steel 316L Nanocoated with TiO2and Al2O3by Atomic Layer Deposition Method

Abbass, Muna Khethier; Ajeel, Sami A.; Wadullah, Haitham M.

doi:10.1088/1742-6596/1032/1/012017

Cited by 16 publications

(13 citation statements)

References 10 publications

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“…ALD is a chemical method, which allows the production of highly conformal and uniform thin films. Due to the alternating precursor pulses with self-limiting reactions, ALD is capable of producing films with atomic layer thickness control and to coat uniformly and conformally complex 3D structures [17,33,42,43,44].…”

Section: Introductionmentioning

confidence: 99%

Titania Nanotubes/Hydroxyapatite Nanocomposites Produced with the Use of the Atomic Layer Deposition Technique: Estimation of Bioactivity and Nanomechanical Properties

et al. 2019

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Titanium dioxide nanotubes/hydroxyapatite nanocomposites were produced on a titanium alloy (Ti6Al4V/TNT/HA) and studied as a biocompatible coating for an implant surface modification. As a novel approach for this type of nanocomposite fabrication, the atomic layer deposition (ALD) method with an extremely low number of cycles was used to enrich titania nanotubes (TNT) with a very thin hydroxyapatite coating. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used for determination of the structure and the surface morphology of the fabricated nanocoatings. The biointegration activity of the layers was estimated based on fibroblasts’ proliferation on the TNT/HA surface. The antibacterial activity was determined by analyzing the ability of the layers to inhibit bacterial colonization and biofilm formation. Mechanical properties of the Ti6Al4V/TNT/HA samples were estimated by measuring the hardness, Young’s module, and susceptibility to scratching. The results revealed that the nanoporous titanium alloy coatings enriched with a very thin hydroxyapatite layer may be a promising way to achieve the desired balance between biofunctional and biomechanical properties of modern implants.

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Section: Introductionmentioning

confidence: 99%

Titania Nanotubes/Hydroxyapatite Nanocomposites Produced with the Use of the Atomic Layer Deposition Technique: Estimation of Bioactivity and Nanomechanical Properties

et al. 2019

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“…In addition, although Al 2 O 3 coatings are rarely used alone for orthodontic brackets and archwires, they can be coated together with TiO 2 . Muna Khethier Abbass et al prepared nanocoated films of Al 2 O 3 , TiO 2 , and multilayer aluminum oxide/titanium dioxide (Al 2 O 3 /TiO 2 ) on SS surfaces via atomic layer deposition (ALD) and found that all three films could effectively enhance corrosion resistance, and that multiple layers are better than a single layer, while Al 2 O 3 is better than TiO 2 [ 158 ]. However, in a recent study, researchers formed nonporous, nickel-free TiO 2 coatings with a thickness of 50 nm via pulse anodization, as shown in Figure 8 , which exhibited good hydrophilicity and corrosion protection [ 174 ].…”

Section: Corrosion-resistant Coatingsmentioning

confidence: 99%

Functional Surface Coatings on Orthodontic Appliances: Reviews of Friction Reduction, Antibacterial Properties, and Corrosion Resistance

Zhang

Han

Liu

2023

IJMS

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Surface coating technology is an important way to improve the properties of orthodontic appliances, allowing for reduced friction, antibacterial properties, and enhanced corrosion resistance. It improves treatment efficiency, reduces side effects, and increases the safety and durability of orthodontic appliances. Existing functional coatings are prepared with suitable additional layers on the surface of the substrate to achieve the abovementioned modifications, and commonly used materials mainly include metal and metallic compound materials, carbon-based materials, polymers, and bioactive materials. In addition to single-use materials, metal-metal or metal-nonmetal materials can be combined. Methods of coating preparation include, but are not limited to, physical vapor deposition (PVD), chemical deposition, sol-gel dip coating, etc., with a variety of different conditions for preparing the coatings. In the reviewed studies, a wide variety of surface coatings were found to be effective. However, the present coating materials have not yet achieved a perfect combination of these three functions, and their safety and durability need further verification. This paper reviews and summarizes the effectiveness, advantages and disadvantages, and clinical perspectives of different coating materials for orthodontic appliances in terms of friction reduction, antibacterial properties, and enhanced corrosion resistance, and discusses more possibilities for follow-up studies as well as for clinical applications in detail.

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“…Because of its high Cr content (more than 12 wt %), Materials made of stainless steel are more resistant to a wide range of eroding environments, allowing for the creation of a firmly adhering, corrosion-resistant, and selfcuring Cr Cr2O3 coating oxide. The formation of chromium carbides at grain borders does not induce intergranular corrosion in austenitic stainless steel [19]. SS has few applications in medical implants, despite its many benefits as in a presence of chloride, it is susceptible to corroding, leading to the release of harmful metallic ions like chromium and nickel [20].…”

Section: Stainless Steelmentioning

confidence: 99%

“…Implants made of stainless steel have degraded in the body because of pitting, crevice corrosion, corrosion fatigue, fretting corrosion, stress corrosion cracking, and galvanic corrosion, despite these properties [16]. Because chromium in the outermost layer interacts with oxygen, a thin film of adhered and cohesive oxide (passive film) encloses the surface and acts as a rusting barrier [19]. The withstanding ability of austenitic stainless steel with wear is quite low.…”

Section: Stainless Steelmentioning

confidence: 99%

Studies on Stress Analysis of Hip Prosthesis Implant

Wani¹,

Deshmukh²,

Ghorpade³

2022

J. Engg. Res. & Sci.

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Biomedical engineering has become a solution for many biological problems by the application of principles and problem-solving techniques. Pacemakers, artificial bone replacements, 3-D printed organs, and dental replacements are very common examples of an application of engineering in the biomedical field. In medical applications when there is a need for bone replacement in a patient who is suffering from arthritis, the hip joint replacement cannot be avoided. The use of the artificial hip joint is going more popular and has become a need in the case of arthritis. An artificial hip implant is essential for providing initial stability at the place of failure. The comparative study in this field is limited and needs to be studied thoroughly. This paper focuses on a comparative study of hip replacement implants using SS (stainless steel) and Ti6Al4V (titanium alloy). In this study, 3dimensional finite element analysis (using ANSYS2020) of hip replacement implant is performed by applying directional loads to detect von-mises stress amount, stress locations, and deformation in the implant. Assembly of the hip replacement implant is modeled (using Fusion 360) and static structural analysis is separately done using two different materials (SS and Ti-6Al-4V) for the femoral stem and using HDPE and HDPE/0.25MWCNT/0.15 for acetabular cup and liners respectively. Boundary conditions and loads applied are unchanged while varying parameters are the neck angle of implant and materials used. A similar static structural analysis for the elevated liner and flat liner at three different shell inclinations is done separately using the model which has shown better results. This study will help the researchers for further study on stress analysis of hip prosthesis implants.

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Biocompatibility, Bioactivity and Corrosion Resistance of Stainless Steel 316L Nanocoated with TiO₂and Al₂O₃by Atomic Layer Deposition Method

Cited by 16 publications

References 10 publications

Titania Nanotubes/Hydroxyapatite Nanocomposites Produced with the Use of the Atomic Layer Deposition Technique: Estimation of Bioactivity and Nanomechanical Properties

Titania Nanotubes/Hydroxyapatite Nanocomposites Produced with the Use of the Atomic Layer Deposition Technique: Estimation of Bioactivity and Nanomechanical Properties

Functional Surface Coatings on Orthodontic Appliances: Reviews of Friction Reduction, Antibacterial Properties, and Corrosion Resistance

Studies on Stress Analysis of Hip Prosthesis Implant

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