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Topic Review
Thermodynamic Insights into Symmetry Breaking
Symmetry breaking is a phenomenon that is observed in various contexts, from the early universe to complex organisms, and it is considered a key puzzle in understanding the emergence of life. The importance of this phenomenon is underscored by the prevalence of enantiomeric amino acids and proteins. The presence of enantiomeric amino acids and proteins highlights its critical role. However, the origin of symmetry breaking has yet to be comprehensively explained, particularly from an energetic standpoint.  Therefore, a novel approach is explored by considering energy dissipation, specifically the lost free energy, as a crucial factor in elucidating symmetry breaking. A comprehensive thermodynamic analysis applicable to all scales from elementary particles to aggregate structures such as crystals is performed, we present experimental evidence establishing a direct link between nonequilibrium free energy and energy dissipation during the formation of the structures. Results emphasize the pivotal role of energy dissipation, not only as an outcome but as the trigger for symmetry breaking. This insight suggests that understanding the origins of complex systems, from cells to living beings and the universe itself, requires a lens focused on nonequilibrium processes  
  • 313
  • 15 Apr 2024
Topic Review
Deep Eutectic Solvents and Rare Earth Elements
The boosted interest in the use of rare earth elements (REEs) in modern technologies had also increase the necessity of their recovery from various sources, including raw materials and wastes. Though Hydrometallurgy plays a key role in these recovery processes, some drawbacks (apparent or not) of these processes (including the use of aggressive mineral acids, harmful extractants and diluents, etc.), had led to the development of a more environmental friendship subclass named Solvometallurgy, in which non-aqueous solvents substituted to the aqueous media of the hydrometallurgical processing. Together to ionic liquids (ILs), the non-aqueous solvents chosen for these usages are the chemicals known as Deep Eutectic Solvents (DEEs). The utilization of DEEs included the leaching of REEs from the different sources containing them, and also in the separation-purification steps necessary for the yielding of these elements, normally as oxides or salts, in the most purified form. 
  • 261
  • 15 Apr 2024
Topic Review
The Principles of Atom Transfer Radical Polymerization
Atom transfer radical polymerization (ATRP) is a robust polymerization method that was developed by Dr. Jin-Shan Wang in Professor Matyjaszewski’s laboratory in 1995. It was inspired by atom transfer radical addition, which was successfully used in the synthesis of low-molecular-weight compounds.
  • 834
  • 14 Apr 2024
Topic Review
Synthesis of Metal Complexes of 2-Thiouracil and Derivatives
The thionamide antithyroid agents were discovered largely through observations carried out by various researchers in the 1940s that found that sulfhydryl-containing substances were goitrogenic in animals. Prof. Edwin B. Astwood started using these drugs to treat hyperthyroidism. The development background of these agents, the coordination possibility of 2-thiouracil and its derivatives are presented herein.
  • 291
  • 12 Apr 2024
Topic Review
Polysaccharide- and Aliphatic Polyester-Based Packaging
Food packaging plays an imperative role in the food processing sector by safeguarding foods from their point of harvesting until the moment of consumption.
  • 225
  • 01 Apr 2024
Topic Review
Alternative Methods to Retting of Straw
Bast fibers, such as flax and hemp, have been used by humanity for thousands of years. In the case of processes other than dew or field retting, they can also follow field drying. In any case, the fiber plant straw is retted first in order to be able to carry out the subsequent mechanical fiber recovery by decortication, cleaning and, if necessary, opening of the coarse fiber bundles. This can be defined as primary processing of bast fiber straw. The retting process involves the controlled decomposition of those substances that bind the fiber containing tissues to the other components of the stalk as well as the fibers to each other (to form so called bundles). It is described as one of the most important steps in the whole supply chain of fibers from bast fiber plants such as hemp and flax since it affects both the ease of performing the subsequent mechanical processing steps as well as the quality of the resulting fibers.
  • 269
  • 01 Apr 2024
Topic Review
Logic Gates and Molecular Logic Gates
Logic gates are devices used to perform binary arithmetic and logical operations and thus constitute the basis of modern computers. They perform Boolean logic operations on one or more inputs to produce an output. Molecular switches convert input stimulations into output signals. Therefore, the principles of binary logic can be applied to the signal transduction operated by molecular switches. The presence of various ions, neutral species, pH, temperature, and viscosity, among many others, result in color or emission changes due to the complex interplay of many excited state processes and environmental parameters. In this entry, basic logic gates are defined, and their types are given, while examples of molecular logic gates are also presented.
  • 200
  • 29 Mar 2024
Topic Review
In Vivo/In Vitro Electrochemical Detection of Neurochemicals
Neurochemicals, crucial for nervous system function, influence vital bodily processes and their fluctuations are linked to neurodegenerative diseases and mental health conditions. Monitoring these compounds is pivotal, yet the intricate nature of the central nervous system poses challenges. Researchers have devised methods, notably electrochemical sensing with micro-nanoscale electrodes, offering high-resolution monitoring despite low concentrations and rapid changes. Implantable sensors enable precise detection in brain tissues with minimal damage, while microdialysis-coupled platforms allow in vivo sampling and subsequent in vitro analysis, addressing the selectivity issues seen in other methods.
  • 266
  • 27 Mar 2024
Topic Review
Epidermal Growth Factor Receptor
Protein kinases are one of the largest enzyme families. By manipulating the location, activity, and functionality of many proteins via multisite phosphorylation, they regulate a broad spectrum of cellular processes. Numerous critical cancer processes, such as tumor growth, metastasis, neovascularization, and chemotherapy resistance, have been shown to be significantly impacted by them. Protein kinases catalyze the transfer of a phosphate group from ATP to the hydroxy group of an amino acid residue. In cellular and molecular process, protein kinases are indispensable. As a result, they play a crucial part in the growth, dissemination, and survival of tumor cells in humans. Hence, this class of enzymes has drawn significant attention as a potential therapeutic target, with multiple kinase suppressors now receiving FDA approval for different cancer indications.
  • 350
  • 25 Mar 2024
Topic Review
Conductive Polymer-Based Interlayer Modified Separators in Lithium–Sulfur Batteries
Lithium–sulfur batteries (LSBs) are considered a promising candidate for next-generation energy storage devices due to the advantages of high theoretical specific capacity, abundant resources and being environmentally friendly. However, the severe shuttle effect of polysulfides causes the low utilization of active substances and rapid capacity fading, thus seriously limiting their practical application. The introduction of conductive polymer-based interlayers between cathodes and separators is considered to be an effective method to solve this problem because they can largely confine, anchor and convert the soluble polysulfides.
  • 156
  • 22 Mar 2024
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