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Radical generation
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Ebook "Ultrasonic synthesis of functional materials" begins by giving a summary of sonochemistry and explains how a chemical reaction can be induced by the interaction of sound waves and gas bubbles in liquids. The work outlines how primary and secondary radicals combined with the physical effects generated during acoustic cavitation are active in the ultrasonic synthesis of a variety of functional materials.
49p
tracanhphuonghoa1007
22-04-2024
2
2
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Part 2 book "Marks' basic medical biochemistry - A clinical approach" includes content: Basic concepts in the regulation of fuel metabolism by insulin; glucagon, and other hormones, cellular bioenergetics - adenosine triphosphate and O2; digestion, absorption, and transport of carbohydrates; generation of adenosine triphosphate from glucose, fructose, and galactose - glycolysis; tricarboxylic acid cycle; oxidative phosphorylation and mitochondrial function; oxygen toxicity and free radical injury; formation and degradation of glycogen.... and other contents.
366p
oursky07
24-10-2023
4
3
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Prostate cancer (PCa) is one of the most prevalent cancers worldwide. The clinical manifestations and molecular characteristics of PCa are highly variable. Aggressive types require radical treatment, whereas indolent ones may be suitable for active surveillance or organ-preserving focal therapies.
20p
visharma
20-10-2023
5
2
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This study explored the effect of the presence of sulfate radicals on the degradation rate of PFOA undergoing UV–irradiation. The effects of sulfate concentration, solution temperature and the radical scavengers on the degradation rate of PFOA were investigated.
6p
viironman
02-06-2023
6
3
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This thesis documents a research program in which Australian grown Danshen extracts and related bioactive compounds have been demonstrated to be effective in scavenging free radicals, namely ROS generation, in a cell free system and NADPH oxidase derived superoxide (O2-) generation in vascular tissue (rat aorta). Danshen extracts, both aqueous and ethanol, and their active compounds (Tanshinone IIA, Salvianolic Acid B and Danshensu) demonstrated anti-oxidant activity however findings exhibited stronger activity in a cell free system than in the aortic vascular tissue.
138p
runthenight07
01-03-2023
6
2
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Mechanism of the reaction between Criegee compound (CH2OO) and Propargyl radical (C3H3) has been studied by using the density functional theory DFT/M06-2X in conjunction with the 6-311++G(3df,2p) basis set for both optimization and single-point energy calculations.
5p
viporsche
25-10-2022
9
3
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Desflurane during early reperfusion has been shown to postcondition human myocardium, in vitro. We investigated the role of adenosine and bradykinin receptors, and generation of radical oxygen species in desflurane-induced postconditioning in human myocardium.
9p
viisaacnewton
26-04-2022
11
1
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This study also shows that the g-C3N4/SnO2 heterojunction is a stable catalyst system and superoxide radicals play a crucial role in the photocatalytic NO removal. Since the preparation of the g-C3N4/SnO2 heterojunction reported in this work is straightforward, it can potentially enable the preparation of highly robust visible-light-driven photocatalysts to remove NO pollution.
9p
meyerowitz
25-12-2021
5
0
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It was predicted, using the Prediction of Activity Spectra for Substances online software, that organic sulfur-containing compounds 2,6-di-tert-butyl-4-mercaptophenol (1), 2,6-di-tert-butyl-4-(3-mercaptopropyl)phenol (2), bis-3-[3,5-di-tert-butyl-4-hydroxyphenyl)propyl] sulfide (3), bis(3,5-di-tert-butyl-4-hydroxyphenyl) disulfide (4), diphenyl disulfide (5), dibenzyl disulfide (6), dibutyl disulfide (7), di-tert-butyl disulfide (8), diallyl disulfide (9), and methyl propyl trisulfide (10) could possess antioxidant activity and act as active scavengers of oxygen metabolites.
14p
tudichquannguyet
29-11-2021
8
1
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Excessive amounts of reactive oxygen species (ROS), unless counterbalanced by antioxidants, can cause cellular damage under oxidative stress conditions; therefore, antioxidative defenses against ROS must be measured. With the development of nanotechnology, nanoparticles have found numerous applications in science, health, and industries. Magnetite nanoparticles (Fe3O4 :MNPs) have attracted attention because of their peroxidase-like activity.
10p
tudichquannguyet
29-11-2021
8
1
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Due to environmental concerns, increasing attention has been focused on the application and preparation of biobased polymers and their blends. In this study, cellulose, the most spread biopolymer on Earth, was used in the preparation of novel cotton/polypropyleneAu and cotton/polyethylene-Au nanocomposites via a green mechanochemical approach. First, mechanoradicals were generated by ball milling of the cotton and thermoplastics under cryo conditions, and then, these radicals were used in the reduction of Au ions to Au nanoparticles (Au NPs).
13p
tudichquannguyet
29-11-2021
6
0
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In this study, formation and quantification of mechanochemically generated free radicals of lignin were evaluated after the extraction of lignin from olive seeds and detailed lignin characterization was performed. Lignin was extracted from crushed olive seeds as an insoluble solid using Klason method. Isolated lignin was mechanochemically grinded under cryo conditions using Cryomill and particlesizes were determined by using Zeta Sizer, structural changes were followed by XRD and FTIR-ATR; thermal stabilities were tracked by TGA and DSC.
13p
tudichquannguyet
29-11-2021
14
1
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In this paper, the protective role of melatonin in counteracting metal-induced free radical generation was highlighted. Using the HPLC-FLD technique melatonin was identified and quantified in the roots and leaves of lemon balm (Melissa officinalis L.), grown under photoperiod conditions. Furthermore, the response of plants pre-treated with exogenous 0.1 mM melatonin to the increased zinc (Zn) and cadmium (Cd) concentrations was observed, with changes in mineral (Ca, Mg), physiological and antioxidant status of the plant during heavy metals stress.
12p
tudichquannguyet
29-11-2021
13
1
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In this work, a system combining two advanced oxidation processes, namely electroFenton (EF) in which the hydroxyl radical OH is generated by reactions on the cathode and anodic oxidation (AO) in which OH is produced directly on the anode, was studied to evaluate the treatment of methylene blue (MB) dye in aqueous solution.
14p
spiritedaway36
25-11-2021
12
0
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In this work, cold plasma jet system and used it to effectively remove Rhodamine B in the solution. We showed that the main oxidation substance responsible to remove Rhodamine B is the hydroxyl radical (•OH). By studying the effects of – the hydrogen peroxide (H2O2) concentration in the initial and later produced in the solution, the plasma power, and the Ar gas flow speed – on the dye remove rate, we identified 2 main reaction pathways to generate hydroxyl radical (•OH).
8p
trinhthamhodang1218
18-03-2021
14
2
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Hereditary leiomyomatosis and renal cell carcinoma (HLRCC) is an autosomal dominant tumor susceptibility syndrome, and the disease-related gene has been identified as fumarate hydratase (fumarase, FH). HLRCC-associated kidney cancer is an aggressive tumor characterized by early metastasis to regional lymph nodes and distant organs.
10p
vinaypyidaw2711
26-08-2020
24
1
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We report on a female patient who underwent primary radical resection for a stage 2B Her-2-positive Barrett’s-type esophageal adenocarcinoma (EAC). Despite Her-2 targeted therapy, her disease recurred and required repeated metastectomies.
6p
vimanila2711
25-06-2020
8
0
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Titanium dioxide (TiO2) is added in sunscreens due to its ability to absorb ultraviolet (UV) light. However, upon irradiation of UV light, reactive oxygen species particularly hydroxyl radical which can damage human skin will be generated. In this study, lignin/TiO2 composites were employed to quench the hydroxyl radicals generated by the TiO2.
14p
vijiraiya2711
27-05-2020
8
0
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Tobacco smoke is a toxic gas-phase cocktail consisting of a broad range of organics, and free radical intermediates. The formation of smoke from a burning cigarette depends on a series of mechanisms, including generation of products by pyrolysis and combustion, aerosol formation, and physical mass transfer processes.
8p
vijiraiya2711
27-05-2020
6
0
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Hyptis suaveolens (L) poit commonly known as Vilayati tulsi, belongs to the family Lamiaceae. Production of reactive oxygen species (ROS) causes various diseases and cellular anomalies in human beings. Antioxidants inhibit generation of reactive species, or scavenge them, or raise the levels of endogenous antioxidant defenses. In this study the antioxidant activity of various extract of Hyptis suaveolens (L) poit leaves were evaluated using Total Antioxidant Activity Method, Nitric oxide radical scavenging activity, DPPH Scavenging method, H2O2 scavenging activity, Reducing power assay.
7p
chauchaungayxua5
05-05-2020
9
3
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