Research progress on corrosion behaviors and biocompatibility of rare-earth magnesium alloys in vivo and in vitro

Zhang, Yuan; Liu, Yun; Zheng, Ruining; Zheng, Yue; Chen, Liansheng

doi:10.1016/j.jre.2023.03.005

Cited by 30 publications

(2 citation statements)

References 122 publications

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“…The cathodic polarization curves represent cathodic hydrogen evolution via the water reduction reaction and the anodic region describes dissolution of the sample at an elevated potential. The corrosion potential and corrosion current density are derived from the anodic and cathodic polarization curve branches [41,42]. The E corr and I corr values obtained from the polarization curves are listed in Table 1.…”

Section: Polarization Curvesmentioning

confidence: 99%

Corrosion resistance and biocompatibility of carbon-ion-implanted AZ31B magnesium alloy

Zheng,

lin,

et al. 2024

Preprint

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The poor corrosion resistance of magnesium limits its clinical applications. Accordingly, in the present study, carbon ions were incorporated into a AZ31b magnesium alloy surface via carbon plasma immersion ion-implantation to improve its corrosion resistance and biocompatibility. The surface morphology and properties of the modified alloy were evaluated by field-emission scanning electron microscopy, water contact angle measurement, Raman scattering, X-ray photoelectron spectroscopy, and energy dispersive X-ray spectroscopy. Furthermore, compositional depth profiles were obtained by glow discharge optical emission spectroscopy, revealing a Gaussian-like distribution of carbon concentration. Electrochemical and hydrogen-evolution analysis demonstrated the successfully improved corrosion resistance of the AZ31b Mg alloy, while its biocompatibility was demonstrated by MTT and cell-adherence assays.

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Section: Polarization Curvesmentioning

confidence: 99%

Corrosion resistance and biocompatibility of carbon-ion-implanted AZ31B magnesium alloy

Zheng,

lin,

et al. 2024

Preprint

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“…In recent years, with an in-depth study of rare earth amino acid complexes [1][2][3][4][5][6] , researchers have developed preparation methods, characterization, and analysis of rare earth organic complexes. Studied their physical and chemical properties and obtained well-developed preparation processes for materials with excellent properties.…”

Section: Introductionmentioning

confidence: 99%

Photophysical Properties of Octyl Amino Acid Europium and Terbium Complex / PVB Composite Films

Bohnuud¹,

Gerile²,

Zhang³

et al. 2023

SSP

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The rare earth (Eu3+ and Tb3+) organic complex was doped into PVB matrix materials by solution blending physical method, and the fluorescent composite materials with different concentrations. The analysis indicates that the rare earth organic complexes are evenly distributed in the PVB organic matrix after heating and cooling treatment, and no chemical reaction occurs. The composite exhibits good thermal stability below 150°C; Emission spectrum of Eu complex /PVB films has shown an intense red emission at 615nm with an excitation at 400nm. From the Tb complex /PVB films a green emission at 542nm with an excitation at 254nm has been observed, which provides a new idea for developing fluorescent materials in many fields.

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Gd Added Mg Alloy for Biodegradable Implant Applications

Surendran,

Jayaraj,

Veerappan

et al. 2024

J Biomed Mater Res

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Microstructure, mechanical, in vitro and in vivo behavior of extruded Mg alloys with varying Zn/Gd ratios, Mg‐2Gd‐2Zn‐0.5Zr (Zn/Gd = 1), Mg‐2Gd‐6Zn‐0.5Zr (Zn/Gd = 3), and Mg‐10Gd‐1Zn‐0.5Zr (Zn/Gd = 0.1) were investigated. The results revealed that the major secondary phases such as W (Mg3Zn3Gd2), (Mg,Zn)3Gd, LPSO (Long period stacking order) and I (Mg3Zn6Gd) phase in alloys depended on Zn/Gd ratio. These second phases influenced the mechanical as well as biological characteristics of the alloys. Among studied alloys, Mg‐10Gd‐1Zn‐0.5Zr alloy showed the highest yield strength and tensile strength of 270 (±9.29) and 330 MPa (±15.8), respectively, with a reasonably good elongation of 12% (±2.36). The presence of Gd2O3 in the degradation film of Mg‐10Gd‐1Zn‐0.5Zr enhanced the resistance offered by the film, which resulted in its lowest biodegradation, better viability, and cell proliferation under in vitro condition. The short term (subcutaneous implantation in rats for 1 month) in vivo studies showed that the alloy Mg‐10Gd‐1Zn‐0.5Zr degraded at a rate of 0.35 mm/y (±0.02) and did not induce any toxicity to the vital organs.

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Research progress on corrosion behaviors and biocompatibility of rare-earth magnesium alloys in vivo and in vitro

Cited by 30 publications

References 122 publications

Corrosion resistance and biocompatibility of carbon-ion-implanted AZ31B magnesium alloy

Corrosion resistance and biocompatibility of carbon-ion-implanted AZ31B magnesium alloy

Photophysical Properties of Octyl Amino Acid Europium and Terbium Complex / PVB Composite Films

Gd Added Mg Alloy for Biodegradable Implant Applications

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