Electrophoretically deposited high molecular weight chitosan/bioactive glass composite coatings on WE43 magnesium alloy

Witecka, Agnieszka; Valet, Svenja; Basista, Michał; Boccaccını, Aldo R.

doi:10.1016/j.surfcoat.2021.127232

Cited by 31 publications

(18 citation statements)

References 57 publications

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“…In recent years, significant attention has been given to the development of anticorrosive coatings for biomedical applications of WE43. For example, efficient protection of WE43 has been achieved with bi-layered coatings consisting of hydroxyapatite/poly-L-lactic acid (Diez et al, 2016), or chitosan/ bioactive glass (Witecka et al, 2021). To further improve the protective ability of coatings, corrosion inhibitors can be used.…”

Section: Corrosion Protection Strategiesmentioning

confidence: 99%

Rare Earth Based Magnesium Alloys—A Review on WE Series

2022

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Magnesium and magnesium alloys have attracted growing attention over the last decades as lightweight materials for a wide range of applications. In particular, WE series magnesium alloys have experienced growing interest over the last years due to their favourable mechanical properties at room and elevated temperatures. In addition, it has been reported that these rare earth-containing alloys possess superior corrosion resistance compared to other commonly used magnesium alloys, such as AZ series. This review aims at providing a concise overview of the research efforts made during recent years regarding the properties of WE series magnesium alloys (e.g., mechanical properties, corrosion behaviour), how these properties can be enhanced by controlling the microstructure of these materials, and the role of specific alloying elements that are used for the WE series. The widespread use of these materials has been limited, mainly due to their susceptibility to corrosion. Thus, in the present review, strong emphasis has been given to recent work studying the corrosion behaviour of the WE series alloys, and to protective strategies that can be employed to mitigate their degradation.

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Section: Corrosion Protection Strategiesmentioning

confidence: 99%

Rare Earth Based Magnesium Alloys—A Review on WE Series

2022

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“…The peak at ~1645 cm −1 can be assigned to the N-H bending mode of the amine group and bending mode of H2O. Band at ~1040 cm −1 and represent the C-O vibrations in the chitosan molecule [26,55,56]. Surface observations in sites where the microstructure is still visible after immersion for 110 h in the Hank's solution (Figure 7b,c) confirm that the matrix (α-Mg) is preferentially oxidized and covered by corrosion products.…”

Section: Corrosion Products Under Free Corrosion (Ocp)mentioning

confidence: 99%

Section: Corrosion Products Under Free Corrosion (Ocp)mentioning

confidence: 99%

Corrosion Resistance of MgZn Alloy Covered by Chitosan-Based Coatings

Kozina

Krawiec

Starowicz

et al. 2021

IJMS

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Chitosan coatings are deposited on the surface of Mg20Zn magnesium alloy by means of the spin coating technique. Their structure was investigated using Fourier Transform Infrared Spectroscopy (FTIR) an X-ray photoelectron spectroscopy (XPS). The surface morphology of the magnesium alloy substrate and chitosan coatings was determined using Scanning Electron Microscope (FE-SEM) analysis. Corrosion tests (linear sweep voltamperometry and chronoamperometry) were performed on uncoated and coated magnesium alloy in the Hank’s solution. In both cases, the hydrogen evolution method was used to calculate the corrosion rate after 7-days immersion in the Hank’s solution at 37 °C. It was found that the corrosion rate is 3.2 mm/year and 1.2 mm/year for uncoated and coated substrates, respectively. High corrosion resistance of Mg20Zn alloy covered by multilayer coating (CaP coating + chitosan water glass) is caused by formation of CaSiO3 and Ca3(PO4)2 compounds on its surface.

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“…Extensive research is available on the deposition of chi-based coatings through the EPD process [116][117][118][119]. The literature on EPD of chi goes back quite a few decades.…”

Section: Epd Of Chitosan-based Coatingsmentioning

confidence: 99%

“…Other than SS and Ti, Mg is also a candidate for orthopedic implants due to its high biocompatibility and close elastic modulus to the natural bone [152]. The degradation rate of Mg is high in physiological environment making Mg suitable for temporary implantation devices [119,153]. Biodegradable materials like Mg dissolve in the body under the effect of corrosion with the passage of time and there is no need for second surgery to remove them.…”

Section: Epd Of Zein Based Coatingsmentioning

confidence: 99%

A Brief Insight to the Electrophoretic Deposition of PEEK-, Chitosan-, Gelatin-, and Zein-Based Composite Coatings for Biomedical Applications: Recent Developments and Challenges

et al. 2021

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Electrophoretic deposition (EPD) is a powerful technique to assemble metals, polymer, ceramics, and composite materials into 2D, 3D, and intricately shaped implants. Polymers, proteins, and peptides can be deposited via EPD at room temperature without affecting their chemical structures. Furthermore, EPD is being used to deposit multifunctional coatings (i.e., bioactive, antibacterial, and biocompatible coatings). Recently, EPD was used to architect multi-structured coatings to improve mechanical and biological properties along with the controlled release of drugs/metallic ions. The key characteristics of EPD coatings in terms of inorganic bioactivity and their angiogenic potential coupled with antibacterial properties are the key elements enabling advanced applications of EPD in orthopedic applications. In the emerging field of EPD coatings for hard tissue and soft tissue engineering, an overview of such applications will be presented. The progress in the development of EPD-based polymeric or composite coatings, including their application in orthopedic and targeted drug delivery approaches, will be discussed, with a focus on the effect of different biologically active ions/drugs released from EPD deposits. The literature under discussion involves EPD coatings consisting of chitosan (Chi), zein, polyetheretherketone (PEEK), and their composites. Moreover, in vitro and in vivo investigations of EPD coatings will be discussed in relation to the current main challenge of orthopedic implants, namely that the biomaterial must provide good bone-binding ability and mechanical compatibility.

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Electrophoretically deposited high molecular weight chitosan/bioactive glass composite coatings on WE43 magnesium alloy

Cited by 31 publications

References 57 publications

Rare Earth Based Magnesium Alloys—A Review on WE Series

Rare Earth Based Magnesium Alloys—A Review on WE Series

Corrosion Resistance of MgZn Alloy Covered by Chitosan-Based Coatings

A Brief Insight to the Electrophoretic Deposition of PEEK-, Chitosan-, Gelatin-, and Zein-Based Composite Coatings for Biomedical Applications: Recent Developments and Challenges

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