In vitro degradation behavior and cytocompatibility of Mg-6Zn-Mn alloy

He, Rangan; Liu, Ruoyu; Chen, Qiubing; Zhang, Hongju; Wang, Jingfeng; Guo, Shuyu

doi:10.1016/j.matlet.2018.05.034

Cited by 36 publications

(16 citation statements)

References 20 publications

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“…Further, the basic characterization of the novel polymer has been studied in our previous work. 32 The morphologies of Si and as-prepared Si/C composites are investigated by SEM. In Figure 1(a), nano-Si particles are mainly orbicular with a diameter in the range of 30-80 nm.…”

Section: Resultsmentioning

confidence: 99%

“…The EIS results of Si/C-PgP indicates the improved electronic conductivity, fast lithium-ion transport and the lower charge-transfer resistance than that of Si/C-CMC, due to the superior adhesion property and high electrolyte uptake of grafted PgP network. 32 The surface of Si/C-CMC and Si/C-PgP electrodes after 300 cycles at 0.4 A g −1 are also inspected by SEM (in Figure 7). Compared with the contrast electrode, Si/C-PgP shows much smoother surface and more integrated Si nanospheres, which can attribute to the formation of SEI-like membrane by PgP.…”

Section: Resultsmentioning

confidence: 99%

“…14,29 Furthermore, we also have been developing various water soluble binders for electrode materials. [30][31][32] In this work, the Si@Sdoped C (Si/C) hybrid is synthesized via a mild hydrothermal process of glucose and the simultaneous polymerization of 3,4-ethylenedioxythiophene (EDOT) and poly(sodium-4-styrene sulfonate) (PSSNa) on the surface of nano-Si particles, then followed by a calcination process. A new water soluble polymer of poly(vinyl alcohol) (PVA) grafted with PAA is synthesized via a free-radical polymerization of acrylic acid (AA) in a 1:1 weight ratio in PVA water solution.…”

Section: Introductionmentioning

confidence: 99%

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Si@S‐doped C anode with high cycling stability using PVA‐g‐PAA water soluble binder for lithium‐ion batteries

Zhang

et al. 2019

J of Applied Polymer Sci

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The nanostructured Si@S‐doped C (Si/C) hybrid is synthesized via a mild hydrothermal process of glucose and the simultaneous polymerization of 3,4‐ethylenedioxythiophene and poly(sodium‐4‐styrene sulfonate) on the surface of nano‐Si powders, then followed by a calcination process. A new water soluble polymer of poly(vinyl alcohol) (PVA) grafted with poly(acrylic acid) (PAA) is synthesized via a free‐radical polymerization of acrylic acid (AA) in a 1:1 weight ratio in PVA water solution. The Si/C anode using PVA‐g‐PAA binder, exhibits improved lithium storage properties and cycling stability than that of the parallel electrode with carboxymethyl cellulose binder, which exhibits an initial coulombic efficiency (82.0%), even a reversible capacity of 487 mAh g−1 after 300 cycles with 81.2% capacity retention at 0.4 A g−1. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48764.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Si@S‐doped C anode with high cycling stability using PVA‐g‐PAA water soluble binder for lithium‐ion batteries

Zhang

et al. 2019

J of Applied Polymer Sci

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“…Magnesium for biomedical applications has received considerable attention due to its good biodegradation, non-toxicity, and biocompatibility [1][2][3][4]. Mg that is utilized in biodegradable implanting materials needs to provide an appropriate structural support (good mechanical properties) [5,6] and have a suitable dissolving/degradation process (low corrosion rate [7][8][9] and suitable corrosion process) without being harmful to humans (a suitable quantity of non-toxic elements). Erinc [10] suggested that available Mg alloys for biodegradable implants application should achieved the following properties: 1) the corrosion rate in simulated body fluid (SBF) needs to be < 0.5 mm/year (mm/yr); 2) the yield strength (YS) > 200 MPa and the elongation (EL) > 15%.…”

Section: Introductionmentioning

confidence: 99%

Characterization and Properties of Mg-xGd-1.5Nd-0.5Zn-0.5Zr Alloys for Biodegradation Applications

2020

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The differences in microstructural characteristics, mechanical properties, and corrosion behavior of the as-cast and solution-treated Mg-xGd-1.5Nd-0.5Zn-0.5Zr alloys (Mg-xGd, x = 1, 3, and 5) were studied and discussed. The as-cast Mg-xGd alloys mainly consisted of an α-Mg and island-like eutectic (Mg,Zn)3RE phase, a few cuboidal phases (REH2), and a ZnZr phase. With the increase of Gd content, the grain sizes of the as-cast Mg-xGd alloys decreased. Compared to the microstructure of the as-cast Mg-xGd alloys, the eutectic (Mg,Zn)3RE phase disappeared and the cuboidal REH2 phases existed in the solution-treated Mg-xGd alloys. A large amount of ZnZrx phase was precipitated from α-Mg in the Mg-3Gd alloy and demonstrates a flower-like distribution. The ultimate tensile strength (UTS) and yield strength (YS) of the solution-treated Mg-xGd alloys increased with an increasing Gd content, with the UTS and YS of the Mg-5Gd alloys reaching 217.5 and 125.2 MPa, respectively. Immersion and electrochemical tests showed that the as-cast Mg-3Gd alloy presented the best corrosion resistance with a corrosion rate of 0.285 mm/yr. The corrosion resistance of the solution-treated Mg-3Gd alloy attained the lowest value (0.973 mm/yr), due to the large quantities of ZnZrx with a flower-like phase distribution, forming series of galvanic couple groups with the α-Mg.

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“…Further, Mn element can also be combined with impurity elements during the smelting process to form a high melting point compound precipitated at the bottom of the melt to purifying the alloy. He et al (2018) investigated the in vitro corrosion and biocompatibility of extruded Mg-6Zn-Mn alloy and found that the corrosion rate of extruded alloy was only 1.01 ± 0.10 mm/year after simulated body fluid (SBF) soaking for 1 month, and the cells were non-toxic. Yandong et al (2015) studied the effects of different Mn compositions on the microstructure and mechanical properties of Mg-Zn-Ca alloys.…”

Section: Introductionmentioning

confidence: 99%

Effect of Mn Element Addition on the Microstructure, Mechanical Properties, and Corrosion Properties of Mg-3Zn-0.2Ca Alloy

et al. 2019

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Magnesium-zinc-calcium alloys have unique advantages of being used as biomedical bone implants since their mechanical properties and biocompatibility are similar to human tissues. However, insufficient strength and poor corrosion resistance have been the major problems to stunt the application. In this paper, the changes of microstructure, mechanical properties and corrosion resistance of ternary Mg-3Zn-0.2Ca (wt.%) with different contents of Mn (0.3, 0.5, 0.7, 0.9, wt.%) are studied. With the increase of Mn content, the grain size of as-cast alloy first decreases and then increases, this indicates that the amount of Mn affects the degree of subcooling of the alloy. At the 320 • C/24 h homogenizing treatment, the large and uneven dendrites are transformed into uniform equiaxed grains, the mechanical properties of alloys with different Mn contents are different on the basis of Mg-3Zn-0.2Ca (wt.%) alloy. The five alloys were extruded into bar with a diameter of 8 mm through hot-extrusion process. Quaternary Mg-3Zn-0.2Ca-XMn (X = 0.3, 0.5, 0.7, 0.9) (wt.%) alloys are investigated and the results show that 0.5 wt.% Mn alloy has the best yield tensile strength (YS) (302 MPa) and good ultimate tensile strength (UTS) (327 MPa). The reason is that the different contents of Mn restrain the dynamic recrystallization in extrusion process, which remarkedly reduced the grain size. Moreover, each alloy is investigated by electrochemical measurements at 37 • C in a simulated body fluid (SBF). The electrochemical results show that the corrosion potential of Mn-contained alloys are increased compared to ternary Mg-3Zn-0.2Ca (wt.%) alloy, and 0.5 wt.% Mn-contained alloy performs the best result.

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In vitro degradation behavior and cytocompatibility of Mg-6Zn-Mn alloy

Cited by 36 publications

References 20 publications

Si@S‐doped C anode with high cycling stability using PVA‐g‐PAA water soluble binder for lithium‐ion batteries

Si@S‐doped C anode with high cycling stability using PVA‐g‐PAA water soluble binder for lithium‐ion batteries

Characterization and Properties of Mg-xGd-1.5Nd-0.5Zn-0.5Zr Alloys for Biodegradation Applications

Effect of Mn Element Addition on the Microstructure, Mechanical Properties, and Corrosion Properties of Mg-3Zn-0.2Ca Alloy

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