A new double-layer hydroxyapatite/alumina-silica coated titanium implants using plasma spray technique

Ebrahimi, Nadereh Golshan; Zadeh, Ali Sedaghat Ahangari Hossein; Vaezi, M.R.; Mozafari, Masoud

doi:10.1016/j.surfcoat.2018.08.022

Cited by 23 publications

(15 citation statements)

References 39 publications

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“…Apart from the plasma spray technology, other strategies have been considered to improve the overall performance of the coating. Meanwhile, a new double-layer HA/Al 2 O 3 -SiO 2 coating was put forward by Ebrahimi et al (2018) , compared to monolayer HA, it has improved cell behavior and biocompatibility. Vahabzadeh et al (2015) and Cao et al (2019) doped Sr (Mg and Sr) into HA coating.…”

Section: Physical Modificationmentioning

confidence: 99%

Surface Modification Techniques of Titanium and its Alloys to Functionally Optimize Their Biomedical Properties: Thematic Review

Xue

Attarilar

Liu

et al. 2020

Front. Bioeng. Biotechnol.

146

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Depending on the requirements of specific applications, implanted materials including metals, ceramics, and polymers have been used in various disciplines of medicine. Titanium and its alloys as implant materials play a critical role in the orthopedic and dental procedures. However, they still require the utilization of surface modification technologies to not only achieve the robust osteointegration but also to increase the antibacterial properties, which can avoid the implant-related infections. This article aims to provide a summary of the latest advances in surface modification techniques, of titanium and its alloys, specifically in biomedical applications. These surface techniques include plasma spray, physical vapor deposition, sol-gel, micro-arc oxidation, etc. Moreover, the microstructure evolution is comprehensively discussed, which is followed by enhanced mechanical properties, osseointegration, antibacterial properties, and clinical outcomes. Future researches should focus on the combination of multiple methods or improving the structure and composition of the composite coating to further enhance the coating performance.

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Section: Physical Modificationmentioning

confidence: 99%

Surface Modification Techniques of Titanium and its Alloys to Functionally Optimize Their Biomedical Properties: Thematic Review

Xue

Attarilar

Liu

et al. 2020

Front. Bioeng. Biotechnol.

146

View full text Add to dashboard Cite

show abstract

“…An innovative bi-layer of HA/Al2O3-SiO2 nanocomposite coating in another study is developed on the titanium implants surface by plasma spray process. The results affirmed that double-layered nanocomposite plasma sprayed coating improves roughness, and other properties like wettability, cell viability, and proliferation in comparison with single layered strucutre of the HA coating [42]. Meantime, biofunctional coatings (Mg, Sr)-HA with greater bond strength were efficiently deposited by utilizing plasma-spray method [43].…”

Section: Plasma Sprayingmentioning

confidence: 54%

Thermal Sprayed Composite Coatings for Biomedical Implants: A Brief Review

Prashar¹,

Vasudev²

2020

JTSE

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The implant materials used currently in field of cardiovascular and orthopedics surgery dearth in osteoconductivity. Different surface modification techniques are used, developed and investigated over the years to enhance the osteoconductivity of biomaterials like metals, polymer and ceramics. Although implants made up of metals are strong mechanically but have low bonding ability due to bio-inert nature.To overcome the limitations and to accomplish the desired purpose, composite coatings consisting of bioactive are developed on the metallic biomaterials. In general bio-inert ceramics like yttria stabilized zirconia (ysz), titania, and alumina may be incorporated into hydroxyapatite (HA) matrix to develop composite coatings with improved mechanical properties over the years. The composite coatings developed by thermal spraying have shown promising approach to have good mechanical and biological properties in comparison with single-component and/or monolayer coatings. The strategy to use composite coatings is adopted widely by the professionals/scientists in the area of biomaterials for development and production of materials in order to repair and regeneration of the human tissue. In this article, commercially used thermal spraying techniques used for deposition of composite coatings for biomedical implants are discussed.

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“…In another study, an innovative double-layer of HA/Al 2 O 3 -SiO 2 nanocomposites is deposited on the surface of titanium implants by plasma spray technique. The results indicated that bi-layer plasma sprayed coating enhanced roughness, wettability, as well as improved the cell viability and proliferation compared to single layer of HA coating [52]. Meanwhile, biofunctional (Mg, Sr)-HA coatings with high bonding strength were successfully produced by plasma-spray technique [53].…”

Section: Plasma Sprayingmentioning

confidence: 99%

Surface Modification of Biomedical Titanium Alloy: Micromorphology, Microstructure Evolution and Biomedical Applications

2019

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With the increasing demand for bone implant therapy, titanium alloy has been widely used in the biomedical field. However, various potential applications of titanium alloy implants are easily hampered by their biological inertia. In fact, the interaction of the implant with tissue is critical to the success of the implant. Thus, the implant surface is modified before implantation frequently, which can not only improve the mechanical properties of the implant, but also polish up bioactivity and osseoconductivity on a cellular level. This paper aims at reviewing titanium surface modification techniques for biomedical applications. Additionally, several other significant aspects are described in detail in this article, for example, micromorphology, microstructure evolution that determines mechanical properties, as well as a number of issues concerning about practical application of biomedical implants.

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A new double-layer hydroxyapatite/alumina-silica coated titanium implants using plasma spray technique

Cited by 23 publications

References 39 publications

Surface Modification Techniques of Titanium and its Alloys to Functionally Optimize Their Biomedical Properties: Thematic Review

Surface Modification Techniques of Titanium and its Alloys to Functionally Optimize Their Biomedical Properties: Thematic Review

Thermal Sprayed Composite Coatings for Biomedical Implants: A Brief Review

Surface Modification of Biomedical Titanium Alloy: Micromorphology, Microstructure Evolution and Biomedical Applications

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