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"Advanced Nanoceramic Composite for Health Protection Applications" by Yaser Rehman

Cancer is one of leading cause of human mortality across the world, both in developed and developing countries. Cancer is a complex disease due to its multifacets and multifactor nature. Recently, various studies on cancer revealed that the redox imbalance is one of underlying factor for cancer development and progression. The imbalance in redox homeostasis is mainly caused by overproduction of free radicals, predominately by reactive oxygen species (ROS). ROS can be generated from extrinsic (chemicals, pollutants, radiations, and certain drugs) or intrinsic (mitochondrion, inflammation or enzymatic components). These free radicals cause oxidative stress and leads to damage of biomolecules and tissues. Higher level of ROS and dysregulation of antioxidant system result in malignant transformation and progression through biomolecules attack. To support the underperforming antioxidant system and suppress the overproduction of ROS, different types of antioxidant or ROS scavenging materials ....

Reactive Oxygen Species , Agnetic Quantum Flakes ,

"Design strategies of performance-enhanced Se cathodes for Li-Se batter" by Weiling Qiu, Xiang Long Huang et al.

Lithium-selenium (Li-Se) batteries are deemed as an emerging high energy density electrochemical energy storage system owing to their high specific capacity and volume capacity. Prior to their practicality, a series of critical challenges from the Se cathode side need to be overcome including low reactivity of bulk Se, shuttle effect of intermediates, sluggish redox kinetics of polyselenides, and volume change etc. In this review, recent progress on design strategies of functional Se cathodes are comprehensively summarized and discussed. Following the significance and key challenges, various efficient functionalized strategies for Se cathodes are presented, encompassing covalent bonding, nanostructure construction, heteroatom doping, component hybridization, and solid solution formation. Specially, the universality of these functional strategies are successfully extended into Na-Se batteries, K-Se batteries, and Mg-Se batteries. At last, a brief summary is made and some perspectives ar ....

Materials Design , Etal Selenium Batteries , E Cathodes ,

A breakthrough 3D-printed material incredibly strong and ductile

Researchers 3D printed a dual-phase, nanostructured high-entropy alloy with superior strength and ductility. ....

United States , Jie Ren , 3d Printing ,

Robotic Fish That Sucks Microplastics from Waters Could Address Earth's Growing Microplastic Pollution

Scientists resorted to nanotechnology to develop a robotic fish that can continuously consume and safely destroy microplastics. ....

Atmospheric Administration , Plastic Soup Foundation , National Ocean Service Of The Oceanic , Getty Images , Nano Letters , Microplastics Found , Causing Tissue Necrosis , National Ocean Service , National Oceanic , World War , Microplastic Pollution , California State Government Adopts Strategy , Robotic Fish , Microplastic Pollution , Aquatic Life , Human Health ,

"Nanostructure Engineering Strategies of Cathode Materials for Room-Tem" by Ye Wang, Xiang Long Huang et al.

Room-temperature sodium-sulfur (RT Na-S) batteries are considered to be a competitive electrochemical energy storage system, due to their advantages in abundant natural reserves, inexpensive materials, and superb theoretical energy density. Nevertheless, RT Na-S batteries suffer from a series of critical challenges, especially on the S cathode side, including the insulating nature of S and its discharge products, volumetric fluctuation of S species during the (de)sodiation process, shuttle effect of soluble sodium polysulfides, and sluggish conversion kinetics. Recent studies have shown that nanostructural designs of S-based materials can greatly contribute to alleviating the aforementioned issues via their unique physicochemical properties and architectural features. In this review, we review frontier advancements in nanostructure engineering strategies of S-based cathode materials for RT Na-S batteries in the past decade. Our emphasis is focused on delicate and highly efficient desig ....

Porous Structure , Oom Temperature Nas Batteries , Odium Polysulfide ,