Initial formation of corrosion products on pure zinc in saline solution

Yang, Meng; Liu, Lijun; Zhang, Dawei; Dong, Chaofang; Yan, Yu; Volinsky, Alex A.; Wang, Luning

doi:10.1016/j.bioactmat.2018.08.003

Cited by 104 publications

(94 citation statements)

References 43 publications

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“…2 that E ocp in both sterile and Bacillus systems has shifted positively during the first day. It indicated that a product film developed in the early stage of the experiment due to the material of 10MnNiCrCu steel itself, which changed the state of the electrode surface and protected it temporarily 17 . Since then, the E ocp in sterile system shifted negatively due to oxygen absorption corrosion and stabilized after 5 days 18 .…”

Section: Resultsmentioning

confidence: 99%

Effect of Bacillus subtilis on corrosion behavior of 10MnNiCrCu steel in marine environment

Wang

Liu

et al. 2020

Sci Rep

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Bacillus widely exists in wet natural environment such as soil, water and air, and is often studied as one of representative microorganisms for microbiologically influenced corrosion(MIC) research. In this paper, the growth curve of Bacillus subtilis isolated from marine environment was determined by turbidimetry and its effect on corrosion behavior of 10MnNiCrCu steel was studied by open circuit potential, AC impedance, polarization curve and scanning electron microscopy(SEM). The results showed that with the change of the growth curve of Bacillus subtilis(BS), the open circuit potential(E ocp ) shifted positively and then negatively, and the charge transfer resistance shown by AC impedance was much lower than that of the sterile system, increasing first and then decreasing. The polarization curves showed that the corrosion current density in BS medium was obviously higher than that in sterile system. The corrosion morphology observation showed that although a biofilm by BS developed on the steel surface, the localized corrosion of 10MnNiCrCu steel was aggravated due to the acidness of the metabolite itself and the biofilm with access for electrolyte ions.

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Section: Resultsmentioning

confidence: 99%

Effect of Bacillus subtilis on corrosion behavior of 10MnNiCrCu steel in marine environment

Wang

Liu

et al. 2020

Sci Rep

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“…Ions of Cl − and SO 4 2− are likely to cause pit corrosion, leading to the local acceleration of iron degradation [ 51 ]. What's more, Cl − is also notorious for zinc degradation [ 52 ], which may have influence on the degradation of iron. In addition, endothelial cell coverages on struts of permanent stents and bioresorbable scaffolds are normally lower than those between struts, which is strengthened in Fig.…”

Section: Discussionmentioning

confidence: 99%

In vivo degradation and endothelialization of an iron bioresorbable scaffold

Lin

Zhang

et al. 2021

Bioactive Materials

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Detection of in vivo biodegradation is critical for development of next-generation medical devices such as bioresorbable stents or scaffolds (BRSs). In particular, it is urgent to establish a nondestructive approach to examine in vivo degradation of a new-generation coronary stent for interventional treatment based on mammal experiments; otherwise it is not available to semi-quantitatively monitor biodegradation in any clinical trial. Herein, we put forward a semi-quantitative approach to measure degradation of a sirolimus-eluting iron bioresorbable scaffold (IBS) based on optical coherence tomography (OCT) images; this approach was confirmed to be consistent with the present weight-loss measurements, which is, however, a destructive approach. The IBS was fabricated by a metal-polymer composite technique with a polylactide coating on an iron stent. The efficacy as a coronary stent of this new bioresorbable scaffold was compared with that of a permanent metal stent with the name of trade mark Xience, which has been widely used in clinic. The endothelial coverage on IBS was found to be greater than on Xience after implantation in a rabbit model; and our well-designed ultrathin stent exhibited less individual variation. We further examined degradation of the IBSs in both minipig coronary artery and rabbit abdominal aorta models. The present result indicated much faster iron degradation of IBS in the rabbit model than in the porcine model. The semi-quantitative approach to detect biodegradation of IBS and the finding of the species difference might be stimulating for fundamental investigation of biodegradable implants and clinical translation of the next-generation coronary stents.

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“…The in vitro corrosion behavior of pure Zn in different corrosive mediums has been extensively investigated by researchers [ 85 , 256 , [267] , [268] , [269] ]. For example, the corrosion behavior of pure Zn in two corrosive solutions, PBS and RSS, and two natural body fluids, human plasma and whole blood, was first reported by Torne et al [ 256 ] and their results indicated that corrosion rates decreased with immersion time for plasma and whole blood, while they increased during immersion in PBS and RSS.…”

Section: Corrosion Mechanisms and Degradation Behaviors Of Pure Zn Anmentioning

confidence: 99%

“… Composition (wt.%) and manufacturing process Corrosion medium Immersion time (day) E corr (V) I corr (μA/cm 2 ) C.R (mm/y) Ref. C.R imm C.R ele Pure Zn Pure-Zn Saline 14 −1.25 16.73 – 0.063 [ 269 ] RSS 3 −1.049 – 0.10 0.094 [ 256 ] PBS 3 −0.994 – 0.03 0.021 WB 3 −1.130 – 0.11 0.104 HP 3 −1.094 – 0.19 0.179 SBF 14 −1.08 11.90 0.03 0.18 [ 264 ] Zn (foil) AP 28 −0.97 0.76 0.016 0.011 [ 267 ] Zn Cast ...…”

Section: Corrosion Mechanisms and Degradation Behaviors Of Pure Zn Anmentioning

confidence: 99%

Recent research and progress of biodegradable zinc alloys and composites for biomedical applications: Biomechanical and biocorrosion perspectives

Kabir

Munir

Wen

et al. 2021

Bioactive Materials

228

143

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Biodegradable metals (BMs) gradually degrade in vivo by releasing corrosion products once exposed to the physiological environment in the body. Complete dissolution of biodegradable implants assists tissue healing, with no implant residues in the surrounding tissues. In recent years, three classes of BMs have been extensively investigated, including magnesium (Mg)-based, iron (Fe)-based, and zinc (Zn)-based BMs. Among these three BMs, Mg-based materials have undergone the most clinical trials. However, Mg-based BMs generally exhibit faster degradation rates, which may not match the healing periods for bone tissue, whereas Fe-based BMs exhibit slower and less complete in vivo degradation. Zn-based BMs are now considered a new class of BMs due to their intermediate degradation rates, which fall between those of Mg-based BMs and Fe-based BMs, thus requiring extensive research to validate their suitability for biomedical applications. In the present study, recent research and development on Zn-based BMs are reviewed in conjunction with discussion of their advantages and limitations in relation to existing BMs. The underlying roles of alloy composition, microstructure, and processing technique on the mechanical and corrosion properties of Zn-based BMs are also discussed.

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Initial formation of corrosion products on pure zinc in saline solution

Cited by 104 publications

References 43 publications

Effect of Bacillus subtilis on corrosion behavior of 10MnNiCrCu steel in marine environment

Effect of Bacillus subtilis on corrosion behavior of 10MnNiCrCu steel in marine environment

In vivo degradation and endothelialization of an iron bioresorbable scaffold

Recent research and progress of biodegradable zinc alloys and composites for biomedical applications: Biomechanical and biocorrosion perspectives

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