Biomimetic hydroxyapatite (HAp) coatings on pure Mg and their physiological corrosion behavior

Hernández, Leonardo; González, J D; Barranco, Violeta; Veranes-Pantoja, Yaymarilis; Galván, J.C.; Gattorno, Geonel Rodríguez

doi:10.1016/j.ceramint.2021.09.206

Cited by 25 publications

(11 citation statements)

References 63 publications

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“…The morphology of the specimen surfaces is shown in Figure 9. Similar morphology of HA deposition were also observed by several researchers 34–37 . The deposition on the SEM images of the sample surface indicate the CaP layer, which is also confirmed from the EDS data in Figure 9.…”

Section: Resultssupporting

confidence: 87%

“…Similar morphology of HA deposition were also observed by several researchers. [34][35][36][37] The deposition on the SEM images of the sample surface indicate the CaP layer, which is also confirmed from the EDS data in Figure 9. Figure 9 showed a denser layer for 144 h than 96 h. The intensity of HA peak in groovepressed sample is more than the annealed one for both pure Mg and ZE41 alloy implying the higher surface biomineralization in groovepressed sample.…”

Section: Biomineralization Studiessupporting

confidence: 70%

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Influence of fine‐grained structure produced by groove pressing on the properties of pure Mg and commercial ZE41 alloy

Sahu

Kumar

Chakkingal

et al. 2023

J Biomedical Materials Res

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Biodegradable metals are important for temporary implant applications. However, poor mechanical properties and higher degradation rate of Mg and its commercial alloys is a major disadvantage. In this study, the above properties were tailored using the groove pressing (GP) technique. Uniform fine-grained (UFG) pure Mg and ZE41 alloy were obtained using GP technique. The impact of GP-induced microstructural changes and surface characteristics on mechanical performance, degradation behavior, biomineralization, surface wettability, and cytocompatibility were investigated.The groove-pressed pure Mg and ZE41 alloy had grain sizes of approximately 30 ± 7.8 and 25 ± 7.5 μm, respectively. The hardness of groove-pressed pure Mg and ZE41 alloy increased by 40% and 26%, respectively, when compared to the annealed condition. Enhanced strength and elongation were observed with these samples. The potentiodynamic polarization test showed a higher E corr and lower I corr values for groove-pressed sample when compared to the annealed condition indicating decreased degradation rate. The weight loss data from immersion tests also show that the degradation rate decreases with time confirming the surface passivity of the sample. The degradation rate decreased by 37% and 44% in simulated body fluid for pure Mg and ZE41 alloy, respectively, after GP. The higher hydroxyapatite deposition on the groove-pressed sample than the annealed sample, as observed from surface morphology studies after immersion in simulated body fluid, confirms the increased biomineralization tendency after GP. The higher wettability of the groove-pressed sample leads to higher cell adhesion and cell viability when compared to the annealed sample indicating higher biocompatibility.

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Section: Resultssupporting

confidence: 87%

Section: Biomineralization Studiessupporting

confidence: 70%

Influence of fine‐grained structure produced by groove pressing on the properties of pure Mg and commercial ZE41 alloy

Sahu

Kumar

Chakkingal

et al. 2023

J Biomedical Materials Res

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“…Therefore, biomimetic method has been extensively applied for the modification of metallic biomaterials. For example, Hernandez et al (2022) successfully deposited bioactive hydroxyapatite (HAp) coatings on pure Mg surfaces based on immersion of Mg substrates in supersaturated calcification solution (SCS). Gao et al (2015) used biomimetic method to prepare bioactive hydroxyapatite/graphene oxide (HA/GO) hybrid coatings on Mg alloys, and they found that the formed HA/GO coating could significantly improve the corrosion resistance.…”

Section: Modification Of Magnesium Alloys For Biomedical Applicationsmentioning

confidence: 99%

A review on magnesium alloys for biomedical applications

Zhang

Wang

Liu

et al. 2022

Front. Bioeng. Biotechnol.

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Magnesium (Mg) and Mg alloys are considered as potential candidates for biomedical applications because of their high specific strength, low density, and elastic modulus, degradability, good biocompatibility and biomechanical compatibility. However, the rapid corrosion rate of Mg alloys results in premature loss of mechanical integrity, limiting their clinical application in load-bearing parts. Besides, the low strength of Mg alloys restricts their further application. Thus, it is essential to understand the characteristics and influencing factors of mechanical and corrosion behavior, as well as the methods to improve the mechanical performances and corrosion resistance of Mg alloys. This paper reviews the recent progress in elucidating the corrosion mechanism, optimizing the composition, and microstructure, enhancing the mechanical performances, and controlling the degradation rate of Mg alloys. In particular, the research progress of surface modification technology of Mg alloys is emphasized. Finally, the development direction of biomedical Mg alloys in the future is prospected.

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“…In addition to the pretreatment method and the composition of the solution, the deposition process can also be adjusted by pH, temperature, and so on . The as-prepared coatings mainly contain hydroxyapatite, anhydrous calcium phosphate, dicalcium phosphate dihydrate (DCPD), and so on. They have been proven to be osteoconductive, and hence biomimetic deposition is investigated for the preparation of biocompatible coatings …”

Section: Introductionmentioning

confidence: 99%

Stearic Acid Treatment Enhancing Corrosion Resistance of Biomimetic-Deposited Calcium Phosphate Dihydrate Coating on Medical Degradable Magnesium Alloy

Wang

Dong

et al. 2023

ACS Biomater. Sci. Eng.

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Magnesium (Mg) alloys, a degradable material, have been studied for medical applications due to their excellent mechanical and chemical properties. However, their applications are limited by rapid corrosion. In this work, stearic acid and sodium stearate were used to treat the silane-induced calcium phosphate dihydrate coating to improve its protection for the Mg alloy further without changing the bone-like structure of calcium phosphate. The different effects of stearic acid treatment and sodium stearate treatment were compared. Electrochemical test and immersion test results confirmed that the corrosion resistance of the stearic acid-treated composite coating was greatly enhanced with a reduced corrosion current density by 3 orders of magnitude and hydrogen evolution reduced to 1/25 after 14 days. The stearic acid-treated coating also exhibited improved in vitro biocompatibility corroborated by promoted cell viability and better cell morphology.

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Biomimetic hydroxyapatite (HAp) coatings on pure Mg and their physiological corrosion behavior

Cited by 25 publications

References 63 publications

Influence of fine‐grained structure produced by groove pressing on the properties of pure Mg and commercial ZE41 alloy

Influence of fine‐grained structure produced by groove pressing on the properties of pure Mg and commercial ZE41 alloy

A review on magnesium alloys for biomedical applications

Stearic Acid Treatment Enhancing Corrosion Resistance of Biomimetic-Deposited Calcium Phosphate Dihydrate Coating on Medical Degradable Magnesium Alloy

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