Recent progress of self-healing coatings for magnesium alloys protection

Johari, Norhasnidawani; Alias, J.; Zanurin, A.; Mohamed, N. S.; Alang, N. A.; Zain, Mohd Zamzuri Mohammad

doi:10.1007/s11998-021-00599-2

Cited by 14 publications

(5 citation statements)

References 109 publications

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“…In comparison with other corrosion inhibitor ions (i.e. MnO 4 − , La 3+ , Pr 3+ , VO 3 − ), PO 4 3− demonstrate the best suitability for biomedical self-healing coatings [ 375 ]. The PO 4 3− have a strong tendency to chelate Ca 2+ from physiological media and Mg 2+ produced from corrosion into highly insoluble magnesium phosphates (K sp ∼ 1.04 × 10 −24 ) and calcium phosphates (K sp ∼ 3.7 × 10 −58 ) precipitates at the scratched site to repair the defects.…”

Section: Coatings and Their Current Statusmentioning

confidence: 99%

Progress in bioactive surface coatings on biodegradable Mg alloys: A critical review towards clinical translation

Singh

Batra

Kumar

et al. 2023

Bioactive Materials

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Section: Coatings and Their Current Statusmentioning

confidence: 99%

Progress in bioactive surface coatings on biodegradable Mg alloys: A critical review towards clinical translation

Singh

Batra

Kumar

et al. 2023

Bioactive Materials

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“…[15,18] When a coating is damaged, these nanoparticles react with the released Mg 2+ to form a protective film for passivation or to deposit products that cover the Mg alloy, thus preventing further corrosion. [118] For example, in the composite coating prepared by blending CeO 2 NPs, CS, and gelatin on orthopedic Mg alloy, CeO 2 formed protective films on corroded sites, was reduced to Ce 2 O 3 , and attached to OH-/H 2 O moieties to form an insoluble hydroxylated/hydrated Ce 2 O 3 framework, thus filling the corrosion pits of AZ31 Mg alloy. [15,119] In addition, F-SiO 2 NPs released F − to react with Mg 2+ and form a precipitation layer to close micro-defects caused by corrosive fluid infiltration.…”

Section: Improving Corrosion Resistance To Control the Degradation Ra...mentioning

confidence: 99%

Composite Nanocoatings of Biomedical Magnesium Alloy Implants: Advantages, Mechanisms, and Design Strategies

Dai

Xiong

et al. 2023

Advanced Science

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The rapid degradation of magnesium (Mg) alloy implants erodes mechanical performance and interfacial bioactivity, thereby limiting their clinical utility. Surface modification is among the solutions to improve corrosion resistance and bioefficacy of Mg alloys. Novel composite coatings that incorporate nanostructures create new opportunities for their expanded use. Particle size dominance and impermeability may increase corrosion resistance and thereby prolong implant service time. Nanoparticles with specific biological effects may be released into the peri‐implant microenvironment during the degradation of coatings to promote healing. Composite nanocoatings provide nanoscale surfaces to promote cell adhesion and proliferation. Nanoparticles may activate cellular signaling pathways, while those with porous or core–shell structures may carry antibacterial or immunomodulatory drugs. Composite nanocoatings may promote vascular reendothelialization and osteogenesis, attenuate inflammation, and inhibit bacterial growth, thus increasing their applicability in complex clinical microenvironments such as those of atherosclerosis and open fractures. This review combines the physicochemical properties and biological efficiency of Mg‐based alloy biomedical implants to summarize the advantages of composite nanocoatings, analyzes their mechanisms of action, and proposes design and construction strategies, with the purpose of providing a reference for promoting the clinical application of Mg alloy implants and to further the design of nanocoatings.

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“…It should be noted that due to the poor mechanical properties of hydroxyapatite (HA) (especially low toughness), it is preferred to be used as a coating on metallic implants. In this way, the metallic implant carries the load while the HA coating will promote biocompatibility of the implant surface and its corrosion resistance in body fluids as well (Amirnejad et al, 2018;Johari et al, 2022;Li et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…In this way, the metallic implant carries the load while the HA coating will promote biocompatibility of the implant surface and its corrosion resistance in body fluids as well (Amirnejad et al. , 2018; Johari et al. , 2022; Li et al.…”

Section: Introductionmentioning

confidence: 99%

Modeling of Ca/P and deposit size responses of electrodeposited calcium-phosphate coating using full factorial design

Amirnejad,

Rajabi,

Jamaati

2023

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PurposeThis study aims to investigate the effect of electrodeposition parameters (i.e. time and voltage) on the properties of hydroxyapatite (HA) coating fabricated on Ti6Al4V surface.Design/methodology/approachA full factorial design along with response surface methodology was utilized to evaluate the main effect of independent variables and their relative interactions on response variables. The effect of electrodeposition voltage and deposition time on HA coatings Ca/P molar ratio and the size of deposited HA crystals were examined by structural equation modeling (SEM). The formation of plate-like and needle-like HA crystals was observed for all experiments.FindingsThe results obtained showed that the higher electrodeposition voltage leads to lower Ca/P values for HA coatings. This is more significant at lower deposition times, where at a 20-minute deposition time, the voltage increased from 2 to 3 V and the Ca/P decreased from 2.27 to 1.52. Full factorial design results showed that electrodeposition voltage has a more significant effect on the size of the deposited HA crystal. With increasing the voltage from 2 to 3 V at a deposition time of 20 min, the HA crystal size varied from 99 to 36 µm.Originality/valueThe investigation delved into the impact of two critical parameters, deposition time and voltage, within the electrodeposition process on two paramount properties of HA coatings. Analyzing the alterations in coating characteristics relative to variations in these process parameters can serve as a foundational guide for subsequent research in the domain of calcium-phosphate deposition for implants.

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Recent progress of self-healing coatings for magnesium alloys protection

Cited by 14 publications

References 109 publications

Progress in bioactive surface coatings on biodegradable Mg alloys: A critical review towards clinical translation

Progress in bioactive surface coatings on biodegradable Mg alloys: A critical review towards clinical translation

Composite Nanocoatings of Biomedical Magnesium Alloy Implants: Advantages, Mechanisms, and Design Strategies

Modeling of Ca/P and deposit size responses of electrodeposited calcium-phosphate coating using full factorial design

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