Last. Grzegorz Lisak(NTU: Nanyang Technological University)H-Index: 24
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The rise in human pandemics demands prudent approaches in antiviral material development for disease prevention and treatment via effective protective equipment and therapeutic strategy. However, the current state of the antiviral materials research is predominantly aligned towards drug development and its related areas, catering to the field of pharmaceutical technology. This review distinguishes the research advances in terms of innovative materials exhibiting antiviral activities that take ad...
Public health events caused by viruses pose a significant risk to humans worldwide From December 2019 till now, the rampant novel 2019 coronavirus (SAR-CoV-2) has hugely impacted China and over world Regarding a commendable means of protection, mask technology is relatively mature, though most of the masks cannot effectively resist the�viral infections The key material of the mask is a non-woven material, which makes the barrier of virus through filtration Due to the lack of the ability to kill ...
Abstract Recent advances in nanotechnology have made significant progress in biomedical sciences. However, there are growing concerns that exposure to naturally-occurring and synthetic nano-sized particles promotes various types of human diseases. The lungs are the vital organ for gas exchange. Due to their unique position, the lungs can be the primary route that nanoparticles (NPs) enter the human body, which exerts toxic effects. In spite of the wide applications of NPs, the precise effects on...
#1Enze Zhou(Northeastern University (China))H-Index: 11
#2Dongxu Qiao(DUT: Dalian University of Technology)H-Index: 6
Last. Fuhui Wang(NU: Northeastern University)H-Index: 72
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Abstract The design of novel high-entropy alloys (HEAs) provides a unique opportunity for the development of structure-function integrated materials with high mechanical and antimicrobial properties. In this study, by employing the antibacterial effect of copper, a novel Al0.4CoCrCuFeNi HEA with broad-spectrum antibacterial and strong mechanical properties was designed. High concentrations of copper ions released from the HEA prevented the growth and biofilm formation by biocorrosive marine bact...
#2Gill Diamond(UF: University of Florida)H-Index: 37
: Peptides with broad-spectrum antimicrobial activity are found widely expressed throughout nature. As they participate in a number of different aspects of innate immunity in mammals, they have been termed host defense peptides (HDPs). Due to their common structural features, including an amphipathic structure and cationic charge, they have been widely shown to interact with and disrupt microbial membranes. Thus, it is not surprising that human HDPs have activity against enveloped viruses as wel...
#1Xinrui Zhang(CAS: Chinese Academy of Sciences)H-Index: 2
#2Chunguang Yang(CAS: Chinese Academy of Sciences)H-Index: 23
Last. Ke Yang(CAS: Chinese Academy of Sciences)H-Index: 59
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The addition of copper makes the Cu-bearing stainless steel (SS) possess excellent antibacterial properties. However, the antibacterial mechanism of the Cu-bearing SS is still not accurately understood and recognized. On the one hand, the concentration of released antibacterial Cu ions from its surface is insufficient to generate such an effect. On the other hand, due to the limited Cu content, the area of copper toxicity that can be contacted with bacteria is also much less than that of pure Cu...
#2Xiaolei Wu(CAS: Chinese Academy of Sciences)H-Index: 44
Conventional alloys are usually based on a single host metal. Recent high-entropy alloys (HEAs), in contrast, employ multiple principal elements. The strength of HEAs is considerably higher than traditional solid solutions, as the many constituents lead to a rugged energy landscape that increases the resistance to dislocation motion, which can also be retarded by other heterogeneities. The wide variety of nanostructured heterogeneities in HEAs, including those generated on the fly during tensile...
Abstract The high-temperature deformation mechanism and processing maps of cast Al 0.5 CoCrFeMnNi that comprises face centered cubic (FCC) and body centered cubic (BCC) phases (where BCC phase is a minor phase) were studied at temperatures in the range of 1023–1323 K and at strain rates in the range of 10 −3 to 10 1 s −1 . During hot compression, the hard BCC phase provided nucleation sites for dynamically recrystallized (DRXed) grains in the soft FCC matrix through particle stimulated nucleatio...
#1Qingsong Wang(KIT: Karlsruhe Institute of Technology)H-Index: 20
#2Abhishek Sarkar(KIT: Karlsruhe Institute of Technology)H-Index: 12
Last. Ben Breitung(KIT: Karlsruhe Institute of Technology)H-Index: 16
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In the present work, a new class of high entropy materials for energy storage applications is introduced. Multi-anionic and -cationic compounds are prepared by facile mechanochemistry using a recently designed multi-cationic transition-metal-based high entropy oxide as the precursor and LiF or NaCl as the reactant, leading to formation of lithiated or sodiated materials. Notably, the Li-containing entropy-stabilized oxyfluoride described herein (Lix(Co0.2Cu0.2Mg0.2Ni0.2Zn0.2)OFx) exhibits a work...
#1Easo P George(UT: University of Tennessee)H-Index: 73
#2Dierk Raabe(MPG: Max Planck Society)H-Index: 134
Last. Robert O. Ritchie(University of California, Berkeley)H-Index: 132
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Alloying has long been used to confer desirable properties to materials. Typically, it involves the addition of relatively small amounts of secondary elements to a primary element. For the past decade and a half, however, a new alloying strategy that involves the combination of multiple principal elements in high concentrations to create new materials called high-entropy alloys has been in vogue. The multi-dimensional compositional space that can be tackled with this approach is practically limi...
Abstract null null Three distinct initial microstructures, including the coarse grains (Al0 sample), fine grains (Al0-T sample) and fine grains with particles (Al0.3-TA sample), are prepared to investigate the deformation substructure development in AlxCoCrFeNi (X = 0, 0.3) high entropy alloy under the different influencing factors (grain size, strain temperature, strain level and particle). Results suggest slip dislocation is recognized in all deformed samples under the different strain conditi...
Abstract null null An equation has been derived to predict unit cell volume of high entropy alloys, HEA's, by two different methods. In the first method, a HEA is considered as a mixture of solid solutions. Based on an equation previously reported to calculate unit cell volume of intermetallic compounds, an expression to calculate unit cell volume of HEA's was obtained. In the second method, a HEA is modeled as a mixture of solute element atoms surrounded by different environments. Using the eff...
#1Enze Zhou(MOE: Chinese Ministry of Education)H-Index: 11
#2Guangyu Ren(DUT: Dalian University of Technology)
Last. Huabing Li(Northeastern University (China))H-Index: 18
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Acinetobacter baumannii and methicillin-resistant Staphylococcus aureus (MRSA) are two prevalent pathogens and have developed high resistant to most antibiotics. Therefore, it is a pressing need to develop a new method to inhibit the spread of drug-resistant bacteria. Copper containing high-entropy alloy (HEA, Al0.4CoCrCuFeNi) is a new kind of alloy material, which shows extensive antibacterial activity and mechanical properties in our previous research. This study further develops another HEA (...
Abstract null null Due to the microscopic abrasive wear and surface fatigue in vivo, the substantial improvements of resistance to deformation and the bearing capacity of biomimetic artificial bone face severe challenges. In this paper, we proposed a novel artificial bone material composed of porous titanium scaffold and high entropy alloy coating through powder sintering and magnetron sputtering. It exhibited a similar porosity with the human bone tissue, as the equivalent permeability range re...
Copper (Cu) and its alloys are prospective materials in fighting covid-19 virus and several microbial pandemics, due to its excellent antiviral as well as antimicrobial properties. Even though many studies have proved that copper and its alloys exhibit antiviral properties, this research arena requires further research attention. Several studies conducted on copper and its alloys have proven that copper-based alloys possess excellent potential in controlling the spread of infectious diseases. Mo...
