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Topic Review
Single-Crystal Nickel-Cobalt-Manganese Cathode Research
The booming electric vehicle industry continues to place higher requirements on power batteries related to economic-cost, power density and safety. The positive electrode materials play an important role in the energy storage performance of the battery. The nickel-rich NCM (LiNixCoyMnzO2 with x + y + z = 1) materials have received increasing attention due to their high energy density, which can satisfy the demand of commercial-grade power batteries. Prominently, single-crystal nickel-rich electrodes with s unique micron-scale single-crystal structure possess excellent electrochemical and mechanical performance, even when tested at high rates, high cut-off voltages and high temperatures.
  • 1.4K
  • 27 Dec 2022
Topic Review
Porous Silica Nanosphere
Porous silica nanosphere is one of the conventional and common form of silica nanomaterials in the field of nanotechnology. Most common nanopsheres of porous silica are MCM-41, SBA-15 etc. Wide range of applications say catalytic, biological, energy applications have been investigated and reported using this materials.
  • 1.4K
  • 30 Nov 2020
Topic Review
Gold and Silver Nanoparticle-Based Colorimetric Sensors
Gold and Silver nanoparticles (AuNPs and AgNPs) are perfect platforms for developing sensing colorimetric devices thanks to their high surface to volume ratio and distinctive optical properties, particularly sensitive to changes in the surrounding environment. These characteristics ensure high sensitivity in colorimetric devices. Au and Ag nanoparticles can be capped with suitable molecules that can act as specific analyte receptors, so highly selective sensors can be obtained.
  • 1.4K
  • 23 Nov 2021
Topic Review
Liquid Crystal Elastomer
Liquid crystal elastomer (LCE) describes a class of materials that combine the elastic entropy behaviour associated with conventional elastomers with the stimuli responsive properties of anisotropic liquid crystals. LCEs consequently exhibit attributes of both elastomers and liquid crystals, but additionally have unique properties not found in either. Recent developments in LCE synthesis, as well as the understanding of the behaviour of liquid crystal elastomers—namely their mechanical, optical and responsive properties—is of significant relevance to biology and biomedicine. LCEs are abundant in nature, highlighting the potential use of LCEs in biomimetics. Their exceptional tensile properties and biocompatibility have led to research exploring their applications in artificial tissue, biological sensors and cell scaffolds by exploiting their actuation and shock absorption properties. There has also been significant recent interest in using LCEs as a model for morphogenesis.
  • 1.4K
  • 19 Apr 2021
Topic Review
Titanium Nitriding Methods: Drawbacks and Benefits
The application of titanium alloys in aircraft construction is expanding due to their high corrosion resistance and excellent strength-to-weight ratio. However, if not specially treated, they are characterized by relatively low wear resistance [1,2], a significant limiting factor for their application. The surface treatment may improve this characteristic, and diffusion-saturation by nitrogen is the gold standard, and this section discusses the features, benefits, and shortcomings of the most common titanium nitriding methods.
  • 1.4K
  • 20 Jan 2022
Topic Review
LSPR Optical Fiber Sensors
In recent years, the interaction between light and metallic films have been proven to be a highly powerful tool for optical sensing applications. There has been continuous effort to integrate this plasmonic sensing technology using micro and nanofabrication techniques with the optical fiber sensor world, trying to get better, smaller and cost-effective high performance sensing solutions. In this work, we present a review of the latest and more relevant scientific contributions to the optical fiber sensors field using plasmonic materials over the last decade. The combination of optical fiber technology with metallic micro and nanostructures that allow plasmonic interactions have opened a complete new and promising field of study. We review the main advances in the integration of such metallic micro/nanostructures onto the optical fibers, discuss the most promising fabrication techniques and show the new trends in physical, chemical and biological sensing applications.
  • 1.4K
  • 31 May 2021
Topic Review Peer Reviewed
Enantiomers and Their Resolution
Enantiomers share the same chemical formula but have different chemical structures, i.e., type of isomers. Enantiomers are present in several drugs, perfumes, food, and are a fundamental part of biomolecules. This subject is highly important for pharmaceutical companies. Enantiomeric drugs present different actuation in the human body; depending on the compound, one might combat the symptom, whereas its pair might cause damage. The separation of pairs of enantiomers requires a chiral environment that provokes a structural imbalance that conventional methods cannot provide. Enantioresolution is one of the most promissory studies that benefit several areas, such as pharmaceutical, biotechnology, food industry, and fine chemistry. Its resolution is of great importance, therefore, its main mechanisms of resolution will be explained herein.
  • 1.3K
  • 14 Apr 2022
Topic Review
Structure and Reaction Mechanism of Li-CO2 Batteries
A typical type of Li–CO2 battery consists of a porous cathode, electrolyte (liquid, solid), and lithium metal anode.
  • 1.3K
  • 22 Jun 2022
Topic Review
Extended Surfactants Using HLDN approach
Extended surfactants are molecules including an intramolecular extension that allow attaining high performance without the need for cosurfactant or linker alcohol. The polypropylene oxide chain intramolecular extension generates a polarity transition inside the molecule that produces more interactions with the oil and aqueous phases. The idea was developed in the 1990s, basically to fasten together the rather hydrophilic surfactant and the lipophilic linker, producing the same effect as the mixture without losing a part of the lipophilic linker going away from the interface. Since the lipophilic linker was an amphiphile with a small hydrophilic part located close to the interface, the single structure was developed to imitate the mixture situation. It contains a polar head located in water, then an intermediate slightly polar zone in the oil phase close to the interface, and finally, the surfactant classical hydrocarbon tail.
  • 1.3K
  • 14 Feb 2023
Topic Review
Medicinal Use of Testosterone
Testosterone derivatives and related compounds (such as anabolic-androgenic steroids—AAS) are frequently misused by athletes (both professional and amateur) wishing to promote muscle development and strength or to cover AAS misuse.
  • 1.3K
  • 11 Jun 2021
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