Review on magnesium and magnesium-based alloys as biomaterials for bone immobilization

Journal of Materials Research and Technology, Journal Year: 2023, Volume and Issue: 23, P. 4396 - 4419

Published: Feb. 15, 2023

Magnesium alloy has become one of the third-generation biomedical materials to promote bone tissue regeneration. Compared other metal implants, magnesium is biodegradable and continues degrade as heals, eliminating need for secondary surgical removal. The Young's modulus alloys closer human bone, ions produced by degradation are osteoinductive antimicrobial, which can stimulate new formation, diminish stress shielding effects reduce risk implant failure due infection. However, rapid corrosion rate pure in a physiological environment result mechanical integrity being compromised before fully healed requirements associated with implantation cannot be met. In order properties magnesium-based implants improved through machining, alloying topology optimization match healing tissue. As fixation material, properties, performance biocompatibility crucial. This work reviews studies related organization, mechanics, different analyzes effect manufacturing processes on implants. addition, this paper also investigated wear behavior after analyzed factors such pH, temperature alloy. Finally, improve success coatings discussed.

Language: Английский

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“Smart” micro/nano container-based self-healing coatings on magnesium alloys: A review

Journal of Magnesium and Alloys, Journal Year: 2023, Volume and Issue: 11(7), P. 2230 - 2259

Published: July 1, 2023

Coating technologies are a commonly used way to protect metals against corrosion. However, with more and severe service environments of materials, many protective coating systems often not environmentally friendly or toxic as in the case chromates. Based on world's abundant ideal magnesium (Mg) its alloy, smart self-healing anticorrosive can autonomously restore damaged part according environmental changes, strengthen corrosion protection ability, prolong life. This paper reviews research progress coatings Mg alloys. These mostly contain suitable inhibitors encapsulated into micro/nano containers. Moreover, different mechanisms functionalities containers discussed. The range from inorganic nanocontainers such mesoporous nanoparticles (silica (SiO2), titanium dioxide (TiO2), etc.), over clays (halloysite, hydrotalcite-like, zeolite), organic polymer microcapsules, nanofibers, chitosan (CS) cyclodextrin (CD), well as, carbon materials graphene nanotubes hybrids metal frameworks. functioning be divided two principal groups: autonomous (based defect filling inhibition) non-autonomous dynamic bonds shape memory polymers). multi composite applications various summarized. At present, significant has been made preparation methods Achieving long-term properties sensing failure early warning after function expected main development direction future.

Language: Английский

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pH/NIR-responsive and self-healing coatings with bacteria killing, osteogenesis, and angiogenesis performances on magnesium alloy

Biomaterials, Journal Year: 2023, Volume and Issue: 301, P. 122237 - 122237

Published: July 14, 2023

Language: Английский

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A Superior Corrosion Protection of Mg Alloy via Smart Nontoxic Hybrid Inhibitor-Containing Coatings

Molecules, Journal Year: 2023, Volume and Issue: 28(6), P. 2538 - 2538

Published: March 10, 2023

The increase of corrosion resistance magnesium and its alloys by forming the smart self-healing hybrid coatings was achieved in this work two steps. In first step, using plasma electrolytic oxidation (PEO) treatment, a ceramic-like bioactive coating synthesized on surface biodegradable MA8 alloy. During second formed porous PEO layer impregnated with inhibitor 8-hydroxyquinoline (8-HQ) bioresorbable polymer polycaprolactone (PCL) different variations to enhance protective properties coating. composition, anticorrosion, antifriction were studied. 8-HQ allows controlling rate material degradation due effect PCL treatment inhibitor-containing significantly improves wear retains an pores layer. It revealed that incorporation method (including number steps, impregnation, type solvent) matters mechanism. obtained 1-step dichloromethane solution containing 6 wt.% 15 g/L are characterized best resistance. This demonstrates lowest value current density (3.02 × 10-7 A cm-2). formation results decrease 18 times (0.007 mm year-1) as compared blank (0.128 year-1). An efficiency established be 83.9%. mechanism protection Mg alloy via revealed.

Language: Английский

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Hybrid Coatings for Active Protection against Corrosion of Mg and Its Alloys

Polymers, Journal Year: 2023, Volume and Issue: 15(14), P. 3035 - 3035

Published: July 13, 2023

A novel approach to surface modification was developed improve the corrosion performance of biodegradable magnesium alloys. Additively manufactured samples and Mg-Mn-based alloys were used in this study. This method involves combination plasma electrolytic oxidation create a porous ceramic-like matrix, followed by treatment with protective biocompatible agents. The most efficient for PEO-layer impregnation using sodium oleate polycaprolactone selected optimized. correlation between structure, composition, properties hybrid coatings established. composition formed polymer-containing layers established XPS Raman microspectroscopy. presence its distribution across coating confirmed at microscale. corrosion-protection level assessed potentiodynamic polarization measurements, electrochemical impedance spectroscopy, hydrogen evolution testing, gravimetry (mass-loss tests) vitro. oleate-containing (HC-SO 0.1-2) demonstrated stable behavior even after 7 days immersion Hank's balanced salt solution. corrosion-current density modulus measured frequency 0.1 Hz exposure equal 5.68 × 10-8 A∙cm-2 2.03 106 Ω∙cm2, respectively. demonstrates coating's self-healing properties. effectiveness employing anticorrosive bioactive PEO biomedical products made from demonstrated.

Language: Английский

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Design of self-healing PEO-based protective layers containing in-situ grown LDH loaded with inhibitor on the MA8 magnesium alloy

Journal of Magnesium and Alloys, Journal Year: 2023, Volume and Issue: 11(10), P. 3688 - 3709

Published: Sept. 21, 2023

The high corrosion rate of magnesium and its alloys in chloride-containing solution significantly reduces the potential this material for diverse applications. Therefore, formation a smart protective coating was achieved work to prevent degradation MA8 alloy. A porous ceramic-like matrix obtained on by plasma electrolytic oxidation (PEO). Further surface functionalization performed using layered double hydroxides (LDH) served as nanocontainers inhibitor. Several methods LDH intercalation with benzotriazole (BTA) were proposed. composition morphology formed studied SEM-EDX analysis, XRD, XPS, Raman microspectroscopy. behavior coated samples evaluated electrochemical impedance spectroscopy potentiodynamic polarization. estimated volumetry gravimetry methods. composite provides Mg alloy lowest activity (|Z|f = 0.1 Hz 8.48·105 Ω·cm2, Ic 1.4·10−8 A/cm2, PH 0.21 mm/year) improves properties PEO-coated sample 8.37·103 4.1·10−7 0.31 mm/year). realization self-healing effect inhibitor-containing LDH/PEO-coated system localized (SVET SIET) two artificial defects surface. mechanism involving three stages active protection These findings contribute follow-up developing modified LDH/PEO-based structures that promote resistance, superior performance applications various fields industry medicine.

Language: Английский

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Improving anti-corrosion properties AZ31 Mg alloy corrosion behavior in a simulated body fluid using plasma electrolytic oxidation coating containing hydroxyapatite nanoparticles

Inorganic Chemistry Communications, Journal Year: 2023, Volume and Issue: 158, P. 111470 - 111470

Published: Sept. 25, 2023

Language: Английский

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Advancements in enhancing corrosion protection of Mg alloys: A comprehensive review on the synergistic effects of combining inhibitors with PEO coating

Journal of Magnesium and Alloys, Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 1, 2024

Magnesium (Mg) alloys are lightweight materials with excellent mechanical properties, making them attractive for various applications, including aerospace, automotive, and biomedical industries. However, the practical application of Mg is limited due to their high susceptibility corrosion. Plasma electrolytic oxidation (PEO), or micro-arc (MAO), a coating method that boosts alloys' corrosion resistance. despite benefits PEO coatings, they can still exhibit certain limitations, such as failing maintain long-term protection result inherent porosity. To address these challenges, researchers have suggested use inhibitors in combination coatings on alloys. Inhibitors chemical compounds be incorporated into applied post-treatment further boost resistance PEO-coated Corrosion inhibitors, whether organic inorganic, act by forming protective barrier, hindering process, modifying surface properties reduce Containers made materials, polyelectrolyte shells, layered double hydroxides, polymer mesoporous inorganic materials. Encapsulating containers fully compatible matrix substrate promising approach incorporation. Laboratory studies shown results, demonstrating significant mitigation, extending service life alloy components aggressive environments, providing self-healing properties. In general, this review presents available information incorporation which lead improved performance demanding environments.

Language: Английский

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Carboxylates as green corrosion inhibitors of magnesium alloy for biomedical application

Journal of Magnesium and Alloys, Journal Year: 2024, Volume and Issue: 12(7), P. 2909 - 2936

Published: July 1, 2024

Language: Английский

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New Polycaprolactone-Containing Self-Healing Coating Design for Enhance Corrosion Resistance of the Magnesium and Its Alloys

Polymers, Journal Year: 2022, Volume and Issue: 15(1), P. 202 - 202

Published: Dec. 31, 2022

The method of hybrid coating formation on the surface a bioresorbable wrought magnesium alloy and obtained by additive technology was proposed. Plasma electrolytic oxidation (PEO) with subsequent treatment material using an organic biocompatible corrosion inhibitor polymer used to obtain protective layers. optimal suggested. Using SEM/EDX analysis, XRD, XPS, confocal Raman microspectroscopy, composition formed layers determined. protection performance coatings studied potentiodynamic polarization electrochemical impedance spectroscopy techniques in 0.9 wt.% NaCl HBSS. Hydrogen evolution mass loss tests were performed study rate samples different types coatings. Sealing pores PEO polymeric contributes significant reduction amount diffusing into corrosive medium. best barrier properties established for one-stage application benzotriazole polycaprolactone. Such reduce degradation due active protection.

Language: Английский

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