Hexagonal Boron Nitride Impregnated Silane Composite Coating for Corrosion Resistance of Magnesium Alloys for Temporary Bioimplant Applications

Al-Saadi, Saad; Banerjee, Parama Chakraborty; Anisur, M.R.; Singh, Raman Raghuvir Kumar

doi:10.3390/met7120518

Cited by 23 publications

(12 citation statements)

References 51 publications

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“…In order to improve the mechanical properties of biomaterials and increase their biocompatibility, h-BN has been used in many studies as a biocomposite component [8,9,36,[48][49][50]59,60]. For example, in one study, it was demonstrated that some particular mechanical properties of HA were improved with the addition of boron nitride nanotubes, and it was reported that there was no negative effect on the viability and proliferation of osteoblast cells [9].…”

Section: Discussionmentioning

confidence: 99%

In vivo biocompatibility and fracture healing of hydroxyapatite-hexagonal boron nitride- chitosan-collagen biocomposite coating in rats

Deveci¹,

Gönenci²,

Canpolat³

et al. 2020

Turk J Vet Anim Sci

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The biocompatibility of orthopaedic implants and their effects on fracture healing have key roles for success. In this study, it was aimed to investigate the effects of a novel biocomposite consisting of hydroxyapatite (HA), hexagonal boron nitride (h-BN), chitosan (Cs), and type 1 collagen (Ct1) on biocompatibility and fracture healing in rats. A total of 60 adult male Wistar rats weighing 300-500 g were used in the study. The rats were randomly divided into 2 groups named A (uncoated/control) and B (biocomposite coated). Biocomposite (HA/h-BN/Cs/Ct1) coated and uncoated stainless-steel implants were used as intramedullary pins. Groups A and B were divided into subgroups of A1 and B1 (15th day), A2 and B2 (30th day), A3 and B3 (45th day) according to the date of euthanasia. Clinical, radiographic, haematological, biochemical, and histopathological findings were evaluated by pairwise comparisons. The findings were consistent and similar. No statistically significant difference was found for a finding disturbing the biocompatibility. Histopathological examinations showed that coating biomaterials did not resorb over the course of 15, 30, and 45 days. It is thus revealed that the content is biocompatible. However, it has been concluded that it is necessary to increase the physical strength of the coating surface against sterilization and surgical procedures. As a result, based on the interpretations of the clinical, radiographic, haematological, biochemical, and histopathological findings, the biocompatibility of HA/h-BN/Cs/Ct1 biocomposite materials has been revealed.

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Section: Discussionmentioning

confidence: 99%

In vivo biocompatibility and fracture healing of hydroxyapatite-hexagonal boron nitride- chitosan-collagen biocomposite coating in rats

Deveci¹,

Gönenci²,

Canpolat³

et al. 2020

Turk J Vet Anim Sci

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“…Subsequently, corrosion produces metal debris or soluble metallic ions, which creates long-term detrimental effects on the human body such as metallosis, toxic, or allergic reactions [38][39][40]. It should be noted that this type of coating has to be compatible with the human body, for which inert 2D coatings (i.e., graphene and hBN) are suitable candidates [38,41]. For example, graphene coatings exhibited a reduced corrosion rate of Cu metal in several biological solutions such as fetal bovine serum (FBS), Hank's balanced salt solution (HBSS), phosphate buffered saline (PBS), and cell culture media [38].…”

Section: Biomedicalmentioning

confidence: 99%

“…However, Mg is a bioresorbable metal that has properties similar to human bones that can be used as a replacement [42]. Through conjugation with biocompatible 2D material coatings (e.g., hBN-silane 2D composite), the precise resorption rate of Mg can be engineered to time the Mg temporary implant service life [41].…”

Section: Biomedicalmentioning

confidence: 99%

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Ångström-Scale, Atomically Thin 2D Materials for Corrosion Mitigation and Passivation

et al. 2019

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Metal deterioration via corrosion is a ubiquitous and persistent problem. Ångstrom-scale, atomically thin 2D materials are promising candidates for effective, robust, and economical corrosion passivation coatings due to their ultimate thinness and excellent mechanical and electrical properties. This review focuses on elucidating the mechanism of 2D materials in corrosion mitigation and passivation related to their physicochemical properties and variations, such as defects, out-of-plane deformations, interfacial states, temporal and thickness variations, etc. In addition, this review discusses recent progress and developments of 2D material coatings for corrosion mitigation and passivation as well as the significant challenges to overcome in the future.

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“…But their unacceptably rapid corrosion in human body fluid requires a coating that provides the required corrosion resistance, while also being biocompatible. To this end, the first study included in this special issue investigated the hexagonal boron nitride (hBN)-impregnated silane coating for an advanced magnesium alloy (WZ21) for bioimplant applications [1]. This coating was found to provide a five-fold improvement in the corrosion resistance in human body fluid.…”

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confidence: 99%

Corrosion: Critical Challenge in Wider Use of Magnesium Alloys

Singh

Vijayaraghavan

Kumar

2018

Metals

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Magnesium alloys, given their high strength-to-weight ratio, are very attractive materials for applications such as aerospace and automotive components. They have also been used as fuel cladding material for nuclear engineering applications. However, magnesium alloys have not found widespread application, particularly in corrosive environments, due to their unacceptably rapid corrosion rates. So, there is a great commercial value in finding measures for durable corrosion resistance of magnesium alloys. It may be intriguing that because of the susceptibility of magnesium to corrosion, and the corrosion products of magnesium being non-toxic, there has been recent and increasing interest in these alloys for manufacturing biodegradable temporary implants (e.g., plates, screws, wires etc.). A success in use of magnesium alloy implants could altogether avoid the need for a second surgery that is required when temporary implants are constructed out of traditional materials, such as titanium alloys.The special issue on 'Corrosion of Magnesium Alloys' was proposed with the background of advanced as well as traditional interest in mechanism and mitigation of corrosion of magnesium alloys described above. Some of the topical issues concerning corrosion magnesium alloys are: their use as temporary bioimplants, role of alloy microstructure in corrosion and effective coatings for corrosion resistance and corrosion modeling. There are articles on each of these topics in this special issue. An overview of the articles is presented below.Magnesium alloys are hugely attractive as construction materials for biodegradable temporary implant devices. But their unacceptably rapid corrosion in human body fluid requires a coating that provides the required corrosion resistance, while also being biocompatible. To this end, the first study included in this special issue investigated the hexagonal boron nitride (hBN)-impregnated silane coating for an advanced magnesium alloy (WZ21) for bioimplant applications [1]. This coating was found to provide a five-fold improvement in the corrosion resistance in human body fluid. This study also includes thorough electrochemical analysis, and provides a mechanistic insight into the improvement in corrosion resistance due to the composite coating.In the second study, alloying elements were added to magnesium to develop secondary precipitates for strengthening [2]. These secondary precipitates are invariably highly cathodic to the magnesium alloy solid solution matrix, and hence, cause severe localised corrosion. The large precipitates were found to be more detrimental. Rapid cooling, such as cryogenic quenching after heat treatment, can suppress the formation of large precipitates. The study showed that the alloy subjected

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Hexagonal Boron Nitride Impregnated Silane Composite Coating for Corrosion Resistance of Magnesium Alloys for Temporary Bioimplant Applications

Cited by 23 publications

References 51 publications

In vivo biocompatibility and fracture healing of hydroxyapatite-hexagonal boron nitride- chitosan-collagen biocomposite coating in rats

In vivo biocompatibility and fracture healing of hydroxyapatite-hexagonal boron nitride- chitosan-collagen biocomposite coating in rats

Ångström-Scale, Atomically Thin 2D Materials for Corrosion Mitigation and Passivation

Corrosion: Critical Challenge in Wider Use of Magnesium Alloys

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