The effect of Co-encapsulated GNPs-CNTs nanofillers on mechanical properties, degradation and antibacterial behavior of Mg-based composite

Liu, JunRu; Wang, Xueyi; Saberi, Abbas; Heydari, Zahra

doi:10.1016/j.jmbbm.2022.105601

Cited by 17 publications

(12 citation statements)

References 76 publications

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“…This happens during the SPS process, strengthening the bond and making it more resistant to failure under load [ 15 , 16 ]. the presence of CNTs as nanofillers in composites with unique properties, such as very high Young’s modulus, can also accelerate charge transfer from matrix to reinforcement [ 17 , 18 , 19 , 20 , 21 ]. On the other hand, according to the Orowan mechanism, the reinforcing particles act as a barrier to the free dislocations movement in the matrix, increasing their resistance to deformation [ 11 ].…”

Section: Resultsmentioning

confidence: 99%

“…Composites that break due to shear band deformation have a high work-hardening rate. This form of shear banding has been reported in Mg compression fracture surfaces, and the presence of tensile twinning has been indicated as the dominant plastic deformation when the material is exposed to compressive loading [ 17 , 18 ]. A further barrier to slide diffusion is the dominance of tensile twin diffusion in the Mg matrix by Br and CNTs.…”

Section: Resultsmentioning

confidence: 99%

“…Researches have revealed that Zn promotes osteoblast adhesion of bone cells, as well as cell proliferation and differentiation [ 17 ]. Koç et al [ 18 ] revealed that increasing the Zn portion of a Mg–Zn alloy decreased the grain size and improved the mechanical features, hardness and corrosion resistance of the alloy in laboratory environment [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

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Bredigite-CNTs Reinforced Mg-Zn Bio-Composites to Enhance the Mechanical and Biological Properties for Biomedical Applications

et al. 2023

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Magnesium (Mg) and its compounds have been investigated as biodegradable metals for bone implants. However, high corrosion rates and low bioactivity that cause loss of mechanical properties are factors that have limited their biomedical applications. The purpose of this work is to remedy the weaknesses of the Mg–Zn (MZ) alloy matrix. For this purpose, we have synthesized Mg-based composites with different concentrations of bredigite (Br; Ca7MgSi4O16)–carbon nanotubes (CNTs) using mechanical alloying and semi-powder metallurgy processes with spark plasma sintering. Then, we studied the effect of the simultaneous addition of Br-CNTs on in vitro degradation, as well as its effect on the composites’ mechanical and antibacterial properties. Increases of 57% and 72% respectively were observed in the microhardness and compressive strength of the MZ/Br-CNTs composite in comparison to the MZ alloy. In addition, the rate of degradation of Mg-based composites in simulated body fluids (SBF) was almost 2 times lower. An assessment of antibacterial behavior disclosed that the simultaneous adding of Br-CNTs to Mg can meaningfully prevent the growth and invasion of E. coli and S. aureus. These research findings demonstrate the potential application of MZ/Br-CNTs composites to implants and the treatment of bone infections.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Bredigite-CNTs Reinforced Mg-Zn Bio-Composites to Enhance the Mechanical and Biological Properties for Biomedical Applications

et al. 2023

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“…The authors successfully suppressed the inflammatory response in rats, showing a remarkable ability of the scaffold to avoid macrophage proliferation. A more traditional use of GO-containing collagen composites is represented by using them as a coating for inorganic biocompatible alloys [ 95 ], inducing useful antifibrotic [ 96 ] and antibacterial [ 97 ] effects.…”

Section: Carbon-containing Biopolymer Composites For Biomedical Appli...mentioning

confidence: 99%

A Short Review on Nanostructured Carbon Containing Biopolymer Derived Composites for Tissue Engineering Applications

2023

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The development of new scaffolds and materials for tissue engineering is a wide and open realm of material science. Among solutions, the use of biopolymers represents a particularly interesting area of study due to their great chemical complexity that enables creation of specific molecular architectures. However, biopolymers do not exhibit the properties required for direct application in tissue repair—such as mechanical and electrical properties—but they do show very attractive chemical functionalities which are difficult to produce through in vitro synthesis. The combination of biopolymers with nanostructured carbon fillers could represent a robust solution to enhance composite properties, producing composites with new and unique features, particularly relating to electronic conduction. In this paper, we provide a review of the field of carbonaceous nanostructure-containing biopolymer composites, limiting our investigation to tissue-engineering applications, and providing a complete overview of the recent and most outstanding achievements.

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“…One key advantage of laminated composites is their ability to provide high strength and stiffness while maintaining a low weight. This is particularly important in industries such as aerospace, automotive, and sports equipment manufacturing, where lightweight materials are essential for achieving fuel efficiency, performance, and durability (Liu, 2023).…”

Section: Introductionmentioning

confidence: 99%

A new framework for optimizing energy harvesting from smart composites integrated with piezoelectric patches utilizing lamination parameters

Acar,

Motlagh

2024

10.5267/j.esm

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Amongst various structures, 2D panels are widely used in many industries and in each application, there are many ambient vibrations which can be converted into electrical energy. The very efficient method to utilize can be using piezoelectric patches which are stuffiest enough for various applications like energy harvesting. This study presents a novel approach for investigating energy harvesting in smart structures using composite panels integrated with piezoelectric patches. The panels are chosen to symmetry-balanced laminated composites, and modal and harmonic analysis conducted using the Rayleigh-Ritz method. To compute the kinetic and potential energy components of the piezoelectric patches at a local level, piecewise Heaviside functions are employed, and these energy components are integrated into the equations of motion together with those of the host composite plate. The results of the numerical method are validated by a commercial finite element software (FEM) COMSOL and there is a good match between FEM and this paper results. By subjecting the laminated composite with piezoelectric patches to forced vibration while varying the lamination parameter, the power output is optimized. The findings emphasize the substantial impact of the lamination parameter on power output, indicating that modifications can result in significant power output increase.

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The effect of Co-encapsulated GNPs-CNTs nanofillers on mechanical properties, degradation and antibacterial behavior of Mg-based composite

Cited by 17 publications

References 76 publications

Bredigite-CNTs Reinforced Mg-Zn Bio-Composites to Enhance the Mechanical and Biological Properties for Biomedical Applications

Bredigite-CNTs Reinforced Mg-Zn Bio-Composites to Enhance the Mechanical and Biological Properties for Biomedical Applications

A Short Review on Nanostructured Carbon Containing Biopolymer Derived Composites for Tissue Engineering Applications

A new framework for optimizing energy harvesting from smart composites integrated with piezoelectric patches utilizing lamination parameters

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