Mechanical properties of graphene-reinforced aluminium composite with modified substrate surface: a molecular dynamics study

Liu, Jun; Zhang, Yingyan; Zhang, Yihe; Yang, Jie

doi:10.1088/1361-6528/abc712

Cited by 10 publications

(3 citation statements)

References 34 publications

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“…As an interesting member of carbon nanostructures, graphene, the building block of graphite, can be defined as an atomically two-dimensional layer of hexagonally bonded carbon atoms. Such carbon structure can exhibit outstanding properties such as large specific surface area, high mechanical strength, high electron conductivity as well as strong thermal, optical and catalytic characteristics [149] , [150] , [151] , [152] , [153] , [154] , [155] , [156] , [157] , [158] , [159] , [160] . Graphene-based materials are referred to those materials that contain single or few-layer graphene or graphene oxide [161] , [162] in their structures.…”

Section: Graphene-based Materialsmentioning

confidence: 99%

Antiviral performance of graphene-based materials with emphasis on COVID-19: A review

Seifi

Kamali

2021

Medicine in Drug Discovery

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Coronavirus disease-2019 has been one of the most challenging global epidemics of modern times with a large number of casualties combined with economic hardships across the world. Considering that there is still no definitive cure for the recent viral crisis, this article provides a review of nanomaterials with antiviral activity, with an emphasis on graphene and its derivatives, including graphene oxide, reduced graphene oxide and graphene quantum dots. The possible interactions between surfaces of such nanostructured materials with coronaviruses are discussed. The antiviral mechanisms of graphene materials can be related to events such as the inactivation of virus and/or the host cell receptor, electrostatic trapping and physico-chemical destruction of viral species. These effects can be enhanced by functionalization and/or decoration of carbons with species that enhances graphene-virus interactions. The low-cost and large-scale preparation of graphene materials with enhanced antiviral performances is an interesting research-direction to be explored.

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Section: Graphene-based Materialsmentioning

confidence: 99%

Antiviral performance of graphene-based materials with emphasis on COVID-19: A review

Seifi

Kamali

2021

Medicine in Drug Discovery

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“…Such carbon structure can exhibit fundamental properties such as large specific surface area, high mechanical strength, electron conductivity, optical and catalytic characteristics. [160][161][162][163][164][165][166][167][168][169][170][171][172][173][174] These unique properties of graphene and its derivatives have made these nanostructured materials suitable for various biological and medical applications, including antipathogenic applications. [175][176][177][178][179][180][181] In order to cope with the current COVID-19 pandemic, It should be mentioned that the antibacterial and antiviral activity of graphene or graphene-based nanomaterials can be explored based on various effects, including membrane, oxidative, and photothermal stresses as well as charge transfer, and the entrapment effect of graphene materials on various bacterial species.…”

Section: Inactivation Strategies Of the Virus Before Entry In The Host Cellmentioning

confidence: 99%

Nanotechnology: A Potential Weapon to Fight against COVID‐19

Tiwari

Mishra

Pandey

et al. 2021

Part & Part Syst Charact

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the phylogenetic and taxonomical finding on February 11, the coronavirus (COV) study group (CGS) of the International Committee on Virus Taxonomy (ICTV) designated the virus as SARS-CoV-2. [1] The same day, the director general of the World Health Organization (WHO) designated the disease caused by SARS-CoV-2 "coronavirus disease 2019" (COVID-19). The WHO declared COVID-19 a pandemic On March 11, 2020. Globally as of June 2021, 179 686 071 confirmed cases of COVID-19, including 3 899 172 deaths, reported by WHO. [2] Reducing the burden of COVID-19 infection by developing vaccines and antiviral drugs is still a big challenge for researchers and clinicians.Nowadays, nanotechnology is a promising player in the scientific and medical fields with many applications. [3,4] A new dimension has been opened by the functionally tunable nanosized materials for industrial, biomedical, and scientific purposes, which provides a set of techniques that allow the manipulation of structural and functional properties on a microscale. [5,6] Nanotechnology is kindred with the biomedicinal involvement of nanoparticles (NPs), which are not only used as the backbone in the vaccine to formulate "nanovaccines," nanomaterial-based antiviral agents, disinfectants; which inhibit the multiplication within the host or inactivate them outside the host, but also the application of designed nanorobots to detect and repairs of tissue defects at the cellular level. [7,8] Unlike the conventional drug formulations, which typically circulate throughout the entire body parts, nanoparticles may target a desired part of the body as a targeted drug delivery vehicle. Compared to conventional vaccines, nanovaccines or surface-functionalized nanoparticles can be designed, explicitly targeting lymphatic organs and immune cells to provoke better immune responses. Moreover, the localized infections are challenging to be treated by the conventional vaccines but can be treated by the nanovaccines with specific cells or organ-targeting molecules. In some cases, the nanobased settings are applied to enhance the solubility of hydrophobic compounds. These systems are helpful to protect the antigens from degradation and stabilize a large number of therapeutic biomolecules, such as peptides, proteins, and nucleic acids on the substrate. [9] Viral infections, particularly COVID-19, have posed a severe threat to public health globally because of their wide-sphered distribution and their potent ability to change the genetic makeup. [10] Unfortunately, viruses have adopted various alternative tacticsThe COVID-19 infections have posed an unprecedented global health emergency, with nearly three million deaths to date, and have caused substantial economic loss globally. Hence, an urgent exploration of effective and safe diagnostic/therapeutic approaches for minimizing the threat of this highly pathogenic coronavirus infection is needed. As an alternative to conventional diagnosis and antiviral agents, nanomaterials have a great potential to cope with the current or even futu...

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“…In addition, one should determine the deformation mechanisms and the mechanisms of strengthening and investigate the way graphene affects the deformation behavior of aluminum matrix composites. For the most part, these issues have been addressed via computer simulation using methods of molecular dynamics and via theoretical simulation of the mechanical properties of metal matrix composites with graphene and carbon nanotubes [26][27][28]. Unfortunately, the available experimental data about the correlation between the structure of composites and their mechanical strengths are insufficient, and the available results are rather contradictory [29].…”

Section: Introductionmentioning

confidence: 99%

Effect of Grain Size on the Properties of Aluminum Matrix Composites with Graphene

Бродова

Yolshina²,

Разоренов³

et al. 2022

Metals

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The structure and mechanical properties of composites consisting of a metal matrix based on aluminum and its alloys of different compositions (AA-3003 and AA-5154) and graphene synthes sized in situ under a layer of molten salts were investigated depending on the chemical composition and grain size of the matrix. Aluminum matrix composites of three compositions were studied in as-cast coarse-grained, deformed fine-grained (grain size < 1 mm), and deformed sub microcrystalline (grain size < 1 μm) states in order to compare the structural characteristics of composites with different grain sizes. The composites were subjected to deformation with a split Hopkinson (Kolsky) bar and to dynamic-channel angular pressing. The hardness and dynamic mechanical properties of the composites were measured at strain rates ε˙ from 1.8 − 4.7 × 103 to 1.6 − 2.4 × 105 s−1. It was found that grain refinement induced a sharp increase in the hardness of composites with various compositions (by a factor of 1.6–2.6). A correlation of the elastic-plastic properties of the aluminum matrix composites with the grain sizes and chemical compositions of the matrices was established. A transition from coarse-grained to sub microcrystalline structure was shown to improve the elastic-plastic properties on average by a factor of 1.5. It was proved that the reinforcing effect of graphene increased with the decreasing grain size of the matrix. Mechanisms of reinforcement of the aluminum matrix composites using graphene were proposed.

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Mechanical properties of graphene-reinforced aluminium composite with modified substrate surface: a molecular dynamics study

Cited by 10 publications

References 34 publications

Antiviral performance of graphene-based materials with emphasis on COVID-19: A review

Antiviral performance of graphene-based materials with emphasis on COVID-19: A review

Nanotechnology: A Potential Weapon to Fight against COVID‐19

Effect of Grain Size on the Properties of Aluminum Matrix Composites with Graphene

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