Synthesis and corrosion behavior of a hybrid bioceramic-biopolymer coating on biodegradable Mg alloy for orthopaedic implants

Bakhsheshi‐Rad, Hamid Reza; Hamzah, Esah; Ismail, Ahmad Fauzi; Sharer, Zalilah; Abdul-Kadir, Mohammed Rafiq; Daroonparvar, Mohammadreza; Saud, S. N.; Medraj, Mamoun

doi:10.1016/j.jallcom.2015.07.075

Cited by 31 publications

(9 citation statements)

References 24 publications

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“…A three-electrode cell was used for potentiodynamic polarization tests (PDP) (PARSTAT 2263) and electrochemical impedance spectroscopy (EIS) in simulated body fluid (SBF) according to Ref. [18]. The immersion test procedure was carried out based on the ASTM standard G31-72.…”

Section: Methodsmentioning

confidence: 99%

“…Figure 7 shows the surface morphologies of Zn-Al-Mg and Zn-Al-Mg-xBi alloys after 720-h immersion in the Kokubo solution. Figure 7a and e shows that the surface of the ternary Zn-Al-Mg alloys is uniformly covered by insoluble and relatively compact corrosion products with spherical morphologies, which can act as a protective barrier film from aggressive corrosion attack [18]. However, the surface of Zn-Al-Mg-xBi alloys is partially covered by loosely packed white product with irregular morphologies (Fig.…”

Section: Mechanical Propertiesmentioning

confidence: 97%

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Thermal Characteristics, Mechanical Properties, In Vitro Degradation and Cytotoxicity of Novel Biodegradable Zn–Al–Mg and Zn–Al–Mg–xBi Alloys

Bakhsheshi-Rad

Hamzah

Low

et al. 2017

Acta Metall. Sin. (Engl. Lett.)

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Ternary Zn-0.5Al-0.5Mg and quaternary Zn-0.5Al-0.5Mg-xBi (x = 0.1, 0.3 and 0.5) alloys were studied to evaluate the thermal and structural characteristics, mechanical properties, cytotoxicity and in vitro degradation behavior. Thermal analysis and microstructural observations showed that Zn-0.5Al-0.5Mg is composed of FCC-Al ? HCP-Zn ? Mg 2 (Zn,Al) 11 while a new phase a-Mg 3 Bi 2 appeared after the addition of Bi to the Zn-0.5Al-0.5Mg ternary alloy. The results revealed that the quaternary Zn-Al-Mg-Bi alloys have higher tensile strength, elongation and hardness but slightly lower corrosion resistance than those of the ternary Zn-Al-Mg alloy. Based on the MTT assay, the Zn-Al-Mg and Zn-Al-Mg-Bi alloys were found to be biocompatible, and thus, they can be considered for further investigation in an in vivo environment.

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Section: Methodsmentioning

confidence: 99%

Section: Mechanical Propertiesmentioning

confidence: 97%

Thermal Characteristics, Mechanical Properties, In Vitro Degradation and Cytotoxicity of Novel Biodegradable Zn–Al–Mg and Zn–Al–Mg–xBi Alloys

Bakhsheshi-Rad

Hamzah

Low

et al. 2017

Acta Metall. Sin. (Engl. Lett.)

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“…Biodegradable polymer-based composite coatings with a simple process and drug/ion loading properties have become a research hotspot. [30][31][32] Herein, to achieve sustained drug release and simultaneously enhance the antibacterial ability, corrosion resistance, and osteogenesis of Mg alloy, a sandwiched composite TCSloaded poly (lactic acid) (PLA)/brushite (DCPD) composite coating was developed on the surface of the Mg-Nd-Zn-Zr alloy (denoted as JDBM) implant. Fig.…”

Section: Introductionmentioning

confidence: 99%

Mg-based implants with a sandwiched composite coating simultaneously facilitate antibacterial and osteogenic properties

Wu,

Yu,

Zhang

et al. 2024

J. Mater. Chem. B

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“…Besides, it improves biocompatibility and corrosion resistance and helps to prevent ion release as a physical barrier. For this reason, it is generally preferred as the surface coating material of metallic implants [33][34][35]. Surface modifications of metallic implants can be made using different techniques [36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Hydroxyapatite on the Corrosion Behaviour of AZ Series Mg Alloys

Say

2023

Turkish Journal of Science and Technology

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Metallic biomaterials are widely used in the orthopedic and dental applications owing to their advanced biocompatibility and sophisticated mechanical properties. Many studies are carried out to develop new alloys with high specific strength, high corrosion resistance and high biocompatibility as an alternative to present metallic biomaterials. Mg alloys are potential alloys as a biomaterial, especially because they have low density and high biocompatibility. However, especially the corrosion properties of Mg alloys need to be improved. In this study, the surfaces of AZ31, AZ61 and AZ91 alloys, which are promising as biomaterials, were coated with hydroxyapatite with high biocompatibility, and the effects of the bioceramics coatings on corrosion resistance were comprehensively investigated. Crack-free and porous surface morphologies were obtained in all bioceramic coatings and the presence of the coatings on the surfaces was supported by EDS analysis. As a result of the corrosion tests performed in SBF, it was determined that the AZ91 alloy had the highest corrosion resistance among the uncoated samples. The hydroxyapatite bioceramic coatings also improved the corrosion properties of all samples. However, among all samples, the highest corrosion resistance was obtained in the hydroxyapatite coated AZ91 alloy.

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Synthesis and corrosion behavior of a hybrid bioceramic-biopolymer coating on biodegradable Mg alloy for orthopaedic implants

Cited by 31 publications

References 24 publications

Thermal Characteristics, Mechanical Properties, In Vitro Degradation and Cytotoxicity of Novel Biodegradable Zn–Al–Mg and Zn–Al–Mg–xBi Alloys

Thermal Characteristics, Mechanical Properties, In Vitro Degradation and Cytotoxicity of Novel Biodegradable Zn–Al–Mg and Zn–Al–Mg–xBi Alloys

Mg-based implants with a sandwiched composite coating simultaneously facilitate antibacterial and osteogenic properties

The Effects of Hydroxyapatite on the Corrosion Behaviour of AZ Series Mg Alloys

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