Electrophoretic deposition of hydroxyapatite coating on biodegradable Mg–4Zn–4Sn–0.6Ca–0.5Mn alloy

Saadati, Ahmad; Hesarikia, Hamid; Nourani, Mohammad Reza; Taheri, Ramezan Ali

doi:10.1080/02670844.2019.1661145

Cited by 26 publications

(19 citation statements)

References 51 publications

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“…The electrochemical deposition (ECD) process operated at a moderate temperature is one of the coating techniques available in the biomedical industries that can form a homogeneous coating and perform rapid coating deposition [143,203,204,[225][226][227]. Saadati et al [202] prepared an HAp-based coating on Mg-4Zn-4Sn-0.6Ca-0.5Mn alloy using the electrophoretic coating technique. The obtained coating thickness of more than 100 µm showed an enhancement in corrosion resistance for the coated samples.…”

Section: Current Surface Coating Techniques For the Biomedical Applicationsmentioning

confidence: 99%

Investigation of Coatings, Corrosion and Wear Characteristics of Machined Biomaterials through Hydroxyapatite Mixed-EDM Process: A Review

et al. 2021

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Together, 316L steel, magnesium-alloy, Ni-Ti, titanium-alloy, and cobalt-alloy are commonly employed biomaterials for biomedical applications due to their excellent mechanical characteristics and resistance to corrosion, even though at times they can be incompatible with the body. This is attributed to their poor biofunction, whereby they tend to release contaminants from their attenuated surfaces. Coating of the surface is therefore required to mitigate the release of contaminants. The coating of biomaterials can be achieved through either physical or chemical deposition techniques. However, a newly developed manufacturing process, known as powder mixed-electro discharge machining (PM-EDM), is enabling these biomaterials to be concurrently machined and coated. Thermoelectrical processes allow the migration and removal of the materials from the machined surface caused by melting and chemical reactions during the machining. Hydroxyapatite powder (HAp), yielding Ca, P, and O, is widely used to form biocompatible coatings. The HAp added-EDM process has been reported to significantly improve the coating properties, corrosion, and wear resistance, and biofunctions of biomaterials. This article extensively explores the current development of bio-coatings and the wear and corrosion characteristics of biomaterials through the HAp mixed-EDM process, including the importance of these for biomaterial performance. This review presents a comparative analysis of machined surface properties using the existing deposition methods and the EDM technique employing HAp. The dominance of the process factors over the performance is discussed thoroughly. This study also discusses challenges and areas for future research.

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Section: Current Surface Coating Techniques For the Biomedical Applicationsmentioning

confidence: 99%

Investigation of Coatings, Corrosion and Wear Characteristics of Machined Biomaterials through Hydroxyapatite Mixed-EDM Process: A Review

et al. 2021

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“…In addition to the traditional chemical treatment, electrophoretic deposition (EPD) and micro-arc oxidation (MAO) have been increasingly recommended as effective surface modification methods to improve the corrosion resistance of the Mg-based alloys. For example, the deposition of bioceramics-like layers on the surface of the Mg-based alloys via EPD or MAO have been considered as a feasible technology in inhibition of corrosion [ 92 , 93 ]. In another study, Mehdi Razavi et al [ 94 ] deposited nanostructured akermanite (Ca 2 MgSi 2 O 7 ) coating on the AZ91 Mg alloys through EPD assisted MAO method and observed improved corrosion resistance and mechanical stability for the surface modified Mg alloys.…”

Section: Current Strategies To Address Challenges Of Mg or Its Alloysmentioning

confidence: 99%

Clinical translation and challenges of biodegradable magnesium-based interference screws in ACL reconstruction

Luo

Zhang

Wang³

et al. 2021

Bioactive Materials

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As one of the most promising fixators developed for anterior cruciate ligament (ACL) reconstruction, biodegradable magnesium (Mg)-based interference screws have gained increasing attention attributed to their appropriate modulus and favorable biological properties during degradation after surgical insertion. However, its fast degradation and insufficient mechanical strength have also been recognized as one of the major causes to limit their further application clinically. This review focused on the following four parts. Firstly, the advantages of Mg or its alloys over their counterparts as orthopaedic implants in the fixation of tendon grafts in ACL reconstruction were discussed. Subsequently, the underlying mechanisms behind the contributions of Mg ions to the tendon-bone healing were introduced. Thirdly, the technical challenges of Mg-based interference screws towards clinical trials were discussed, which was followed by the introduction of currently used modification methods for gaining improved corrosion resistance and mechanical properties. Finally, novel strategies including development of Mg/Titanium (Ti) hybrid fixators and Mg-based screws with innovative structure for achieving clinically customized therapies were proposed. Collectively, the advancements in the basic and translational research on the Mg-based interference screws may lay the foundation for exploring a new era in the treatment of the tendon-bone insertion (TBI) and related disorders.

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“…These approaches include atmospheric plasma spraying (APS), vacuum plasma spraying (VPS), liquid plasma spraying (LPS), suspension plasma spraying (SPS), high-velocity oxy-fuel (HVOF), high-velocity suspension flame spraying (HVSFS), detonation gun spraying, and gas tunnel type plasma spraying (GTPS). All these techniques were used to coat metallic implants with HAp [158][159][160][161][162][163].…”

Section: Thermal Sprayingmentioning

confidence: 99%

Current Challenges and Innovative Developments in Hydroxyapatite-Based Coatings on Metallic Materials for Bone Implantation: A Review

et al. 2020

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Biomaterials are in use for the replacement and reconstruction of several tissues and organs as treatment and enhancement. Metallic, organic, and composites are some of the common materials currently in practice. Metallic materials contribute a big share of their mechanical strength and resistance to corrosion properties, while organic polymeric materials stand high due to their biocompatibility, biodegradability, and natural availability. To enhance the biocompatibility of these metals and alloys, coatings are frequently applied. Organic polymeric materials and ceramics are extensively utilized for this purpose due to their outstanding characteristics of biocompatibility and biodegradability. Hydroxyapatite (HAp) is the material from the ceramic class which is an ultimate candidate for coating on these metals for biomedical applications. HAp possesses similar chemical and structural characteristics to normal human bone. Due to the bioactivity and biocompatibility of HAp, it is used for bone implants for regenerating bone tissues. This review covers an extensive study of the development of HAp coatings specifically for the orthopaedic applications that include different coating techniques and the process parameters of these coating techniques. Additionally, the future direction and challenges have been also discussed briefly in this review, including the coating of HAp in combination with other calcium magnesium phosphates that occur naturally in human bone.

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Electrophoretic deposition of hydroxyapatite coating on biodegradable Mg–4Zn–4Sn–0.6Ca–0.5Mn alloy

Cited by 26 publications

References 51 publications

Investigation of Coatings, Corrosion and Wear Characteristics of Machined Biomaterials through Hydroxyapatite Mixed-EDM Process: A Review

Investigation of Coatings, Corrosion and Wear Characteristics of Machined Biomaterials through Hydroxyapatite Mixed-EDM Process: A Review

Clinical translation and challenges of biodegradable magnesium-based interference screws in ACL reconstruction

Current Challenges and Innovative Developments in Hydroxyapatite-Based Coatings on Metallic Materials for Bone Implantation: A Review

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