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Topic Review
Hydrogel-Based Flexible Supercapacitors for Wearable Applications
Hydrogels are often known as three-dimensional networks of polymer chains capable of holding a large quantity of water while also being water insoluble. Research into “hydrogels” is currently a growing topic of scientific interest due to their diverse applications and eco-friendly properties.
  • 435
  • 28 Apr 2023
Topic Review
Influence of HPT on Photocatalytic CO2 Conversion
Severe plastic deformation (SPD) through the high-pressure torsion (HPT) process has been effectively used in recent years to develop novel active catalysts for CO2 conversion. HPT as an SPD method has been used since 1935 until now for grain refinement and the production of nanostructured materials. In addition to grain refinement, the introduction of various defects, such as vacancies and dislocations, is another feature of HPT, which resulta in the improvement of the functionality of materials proceeded by this method.
  • 306
  • 28 Apr 2023
Topic Review
Nitrogen Heterocycles and NRF2 Activation
Several nitrogen heterocyclic analogues have been applied to clinical practice, and about 75% of drugs approved by the FDA contain at least a heterocyclic moiety. Thus, nitrogen heterocycles are beneficial scaffolds that occupy a central position in the development of new drugs. The fact that certain nitrogen heterocyclic compounds significantly activate the NRF2/ARE signaling pathway and upregulate the expression of NRF2-dependent genes, especially HO-1 and NQO1, underscores the need to study the roles and pharmacological effects of N-based heterocyclic moieties in NRF2 activation. Furthermore, nitrogen heterocycles exhibit significant antioxidant and anti-inflammatory activities. NRF2-activating molecules have been of tremendous research interest due to their therapeutic roles in neuroinflammation and oxidative stress-mediated diseases. 
  • 494
  • 28 Apr 2023
Topic Review
Plastic Material Tracking for Circular Economy
Plastics are very versatile materials used in many different applications in everyday life all over the world, with substantial benefits such as durability, flexibility, low weight, and lower cost compared to other alternatives. 
  • 265
  • 27 Apr 2023
Topic Review
Polyphenolic-Loaded Nanocarriers for Inflammation-Mediated Diseases
The global increase and prevalence of inflammatory-mediated diseases have been a great menace to human welfare. Several works have demonstrated the anti-inflammatory potentials of natural polyphenolic compounds, including flavonoid derivatives (EGCG, rutin, apigenin, naringenin) and phenolic acids (GA, CA, etc.), among others (resveratrol, curcumin, etc.). In order to improve the stability and bioavailability of these natural polyphenolic compounds, their recent loading applications in both organic (liposomes, micelles, dendrimers, etc.) and inorganic (mesoporous silica, heavy metals, etc.) nanocarrier technologies are being employed. 
  • 388
  • 27 Apr 2023
Topic Review
Nature-Inspired Cellulose-Based Active Materials
Multifunctional materials and devices with captivating properties can be assembled from cellulose and cellulose-based composite materials combining functionality with structural performance. Cellulose is one of the most abundant renewable materials with captivating properties, such as mechanical robustness, biocompatibility, and biodegradability. Cellulose is a low-cost and abundant biodegradable resource, CO2 neutral, with a wide variety of fibers available all over the world. Over thousands of years, nature has perfected cellulose-based materials according to their needs, such as function vs. structure. Mimicking molecular structures at the nano-, micro-, and macroscales existing in nature is a great strategy to produce synthetic cellulose-based active materials. 
  • 232
  • 27 Apr 2023
Topic Review
Manufacturing Processes for Ceramic Matrix Composites
Materials such as ceramic matrix composites (CMCs) have been the focus of research and being tested in different conditions for several decades now. They are known as a subgroup of composite materials and ceramics. Ceramic composites were developed to control and address problems that occurred with other commonly used ceramics, such as silicon carbide, alumina, silicon nitride, aluminum nitride, and zirconia. Such ceramics fractured with ease, revealing scratches and cracks while mechanical and thermo-mechanical loads were applied to them. CMCs exhibit mechanical and thermal properties comparable with, and in some cases, even better than, the conventional superalloys used in aero-engines. However, their adoption relies on other variables as well, such as the cost of development, industrialization, manufacturing, and the availability of manufacturing technologies and systems.
  • 3.3K
  • 27 Apr 2023
Topic Review
Electrolysis of Industrial Wastewater
Water electrolysis is a powerful technology for producing high-purity H2, with negligible emission of greenhouse gases and compatibility with renewable energy sources. Additionally, the electrolysis of organic compounds, such as lignin, is a promising method for localised H2 production, as it requires lower cell voltages than conventional water electrolysis. Industrial wastewater can be employed in those organic electrolysis systems due to their high organic content, decreasing industrial pollution through wastewater disposal. Electrocoagulation, indirect electrochemical oxidation, anodic oxidation, and electro-Fenton are effective electrochemical methods for treating industrial wastewater.
  • 838
  • 27 Apr 2023
Topic Review
Synthesis and Characterization of Proteinoid and Nanocapsules
Proteinoids are random polymers composed of amino acids synthesized by stepwise thermal polymerization. They were discovered and studied in the 1950s by Fox and coworkers, who suggested that they formed spontaneously by high heat at the beginning of life on Earth. Nanocapsules (NCs) form spontaneously by heating proteinoids to about 70 °C in an aqueous solution to completely dissolve the polymers, followed by slow cooling to room temperature.
  • 490
  • 27 Apr 2023
Topic Review
Types of Supercapacitors
Supercapacitors are mainly divided into three types: electrical double layer (EDL) capacitors, pseudocapacitors, and hybrid supercapacitors based on their energy storage mechanisms. 
  • 681
  • 27 Apr 2023
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