Development and assessment of a multifunctional chitosan-based coating applied on AZ31 magnesium alloy: Corrosion resistance and antibacterial performance against Klebsiella Pneumoniae

Mena-Morcillo, Emmanuel; Véleva, L.; Cerda-Zorrilla, Mariana; Soria-Castro, Montserrat; Castro-Alcántara, Juan C.; Canul-Puc, Rosa C.

doi:10.1016/j.jma.2021.03.033

Cited by 11 publications

(9 citation statements)

References 68 publications

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“…Reproduced with permission from. [133] (Figure 8a) manifests a damaged structure with a cracked corrosion product layer. While the HF-PT sample (Figure 8b) does not have cracks, the CS-CT sample (Figure 8c) has a completely different morphology with a homogenous structure.…”

Section: Hydroxyapatite/chitosan-based Coatingsmentioning

confidence: 99%

“…Also, the corrosion performance of the CS-CT sample is about 3 times better than the bare sample proving its excellent protection against corrosion and degradability. [133] In another study, Zhang et al [134] prepared a multifunctional coating on AZ31B Mg alloy composed of regenerated silk fibroin (RSF), chitosan quaternary ammonium salt (HACC), and heparin sodium (Hep). The production of this multifunctional coating began with the application of RSF coating on the alkaline-treated AZ31B alloy.…”

Section: Hydroxyapatite/chitosan-based Coatingsmentioning

confidence: 99%

“…e) Potentiodynamic polarization curves of different AZ31 samples;f ) bacterial growth through the plate-counting method on the bare substrate and the CS-CT one. Reproduced with permission from [133].…”

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confidence: 99%

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Multifunctional Coatings on Mg‐Based Metallic Biomaterials and Implants

Li,

Kong,

Zhang

2024

Adv Eng Mater

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Multifunctional materials are propitious materials with numerous functionalities that make them an ideal option for implants and biomedical applications that should simultaneously fulfill various requirements, including satisfactory mechanical strength, biocompatibility, antibacterial property, hydrophilicity, drug delivery, etc. Magnesium, as a metallic biomaterial, fulfills the required mechanical properties, but unfortunately, in some ways alone, it cannot provide the required biological properties. For instance, Mg alloys suffer from poor corrosion resistance and high biodegradability, which should be carefully controlled. On the other hand, multifunctional materials alone are not able to provide the required properties in biomedical applications because the vast majority of them do not have the necessary strength and stability. Therefore, the use of magnesium together with multifunctional or composite coatings will be a very advantageous choice for meeting the needs of implants and biomedical materials. The current study focuses on the introduction and utilization of various multifunctional coatings and composites on Mg‐based alloys for biomedical applications. Numerous organic and inorganic materials could be utilized as composites or multifunctional materials, such as polymers, hydroxyapatites, hydrogels, calcium phosphates, alginates, hyaluronic acids, chitosan, etc. In this regard, numerous types of coating and composite materials, their production technologies, mechanisms, resultant properties, and the involved parameters are thoroughly discussed to provide a comprehensive guide for those interested in this field. It is hoped that this study will pave the way for the production of advanced and smart multifunctional materials with unique properties and play a role in the design of a new generation of Mg‐based biomedical materials.This article is protected by copyright. All rights reserved.

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Section: Hydroxyapatite/chitosan-based Coatingsmentioning

confidence: 99%

Section: Hydroxyapatite/chitosan-based Coatingsmentioning

confidence: 99%

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Multifunctional Coatings on Mg‐Based Metallic Biomaterials and Implants

Li,

Kong,

Zhang

2024

Adv Eng Mater

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“…Magnesium alloys have been investigated in recent years in terms of benefits for their usage as biodegradable metal implants [1][2][3][4][5]. The biomedical magnesium alloys reach better biodegradable and absorption properties in the environment of the human body when compared to the conventional metallic implant materials such as titanium alloys, stainless steels, and cobalt alloys [2,5].…”

Section: Introductionmentioning

confidence: 99%

“…For its potential in biomedical applications is the group of magnesium alloys alloyed by aluminum and zinc widely studied for several years [1][2][3][4][5]. Zinc in combination with aluminum eliminates the negative influence of impurities such as iron and nickel on the alloy corrosion resistance and also improves alloys mechanical properties [10].…”

Section: Introductionmentioning

confidence: 99%

Characterization and Corrosion Properties of Fluoride Conversion Coating Prepared on AZ31 Magnesium Alloy

et al. 2021

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Wrought AZ31 magnesium alloy was used as the experimental material for fluoride conversion coating preparation in Na[BF4] molten salt. Two coating temperatures, 430 °C and 450 °C, and three coating times, 0.5, 2, and 8 h, were used for the coating preparation. A scanning electron microscope and energy-dispersive X-ray spectroscopy were used for an investigation of the surface morphology and the cross-sections of the prepared coatings including chemical composition determination. The corrosion resistance of the prepared specimens was investigated in terms of the potentiodynamic tests, electrochemical impedance spectroscopy and immersion tests in the environment of simulated body fluids at 37 ± 2 °C. The increase in the coating temperature and coating time resulted in higher coatings thicknesses and better corrosion resistance. Higher coating temperature was accompanied by smaller defects uniformly distributed on the coating surface. The defects were most probably created due to the reaction of the AlxMny intermetallic phase with Na[BF4] molten salt and/or with the product of its decomposition, BF3 compound, resulting in the creation of soluble Na3[AlF6] and AlF3 compounds, which were removed from the coating during the removal of the secondary Na[MgF3] layer. The negative influence of the AlxMny intermetallic phase was correlated to the particle size and thus the size of created defects.

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