Article
Engineering, Environmental
Hongyu Li, Yan An, Xue Luo, Jie Gao, Mingyan Yang, Xinmin Li, Xiaohua Li, Wen Shi, Zeli Yuan, Huimin Ma
Summary: The researchers have developed a near-infrared fluorescence probe CDHQ for studying cell death, which reveals the generation of hydroxyl radicals during this process. This probe can detect trace levels of hydroxyl radicals that cannot be detected by other methods.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Meijiang Liu, Huifang Liu, Ning Li, Chaofeng Zhang, Jian Zhang, Feng Wang
Summary: This study reveals a synergistic effect of photogenerated holes and superoxide radicals for the selective oxidation of glycerol to formic acid over a TiO2 catalyst. By controlling the oxygen and water contents, surface active species can be controlled to solve the problem of formic acid peroxidation.
Article
Biochemistry & Molecular Biology
Vladimir Volkov, Anton Lobanov, Mikhail Voronkov, Timur Baygildiev, Vyacheslav Misin, Olga Tsivileva
Summary: This study proposes a kinetic model of epinephrine autoxidation in an alkaline medium and reveals the involvement of long oxidation chain reactions in this process. The limiting stage is the one-electron reduction of oxygen by the anionic forms of the phenolic hydroxyls of epinephrine. Additionally, the appearance of an absorption peak at a wavelength of 347 nm during epinephrine autoxidation, as well as the formation of adrenolutin, was confirmed.
Review
Biochemistry & Molecular Biology
Janusz M. Gebicki, Thomas Nauser
Summary: The negative correlation between diets rich in fruits and vegetables and the occurrence of cardiovascular disease, stroke, cancer, and other deleterious conditions may be partly due to flavonoids and other polyphenols. Recent research suggests that the antioxidant role of polyphenols in food may be based on incomplete understanding, and that their actual mechanism may involve regulating cell signalling pathways. New findings show that food polyphenols and their metabolites act as effective antioxidants by significantly increasing the antioxidant protection of cells and tissues.
Article
Chemistry, Physical
Yang Guo, Yixin Zhang, Gang Yu, Yujue Wang
Summary: By comparing the conventional scavenger approach with the proposed probe approach, this study found that using probes can accurately reveal catalytic ozonation mechanisms and provide an effective way to assess the contribution of various ROS to pollutant abatement.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Yang Guo, Juhong Zhan, Gang Yu, Yujue Wang
Summary: During ozonation, the concentrations ratios of hydroxyl radicals, superoxide radicals and ozone remain constant, indicating the potential non-negligible role of superoxide radicals in the degradation of certain micropollutants with similar or higher reactivity compared to hydroxyl radicals. The proposed chemical kinetic model accurately simulates the abatement efficiencies of ozone-resistant micropollutants by considering the contribution of superoxide radicals, providing a valuable tool for predicting micropollutant removal during ozonation.
Review
Biochemistry & Molecular Biology
Luca Valgimigli
Summary: This article reviews the chemistry and biological consequences of lipid peroxidation, focusing on the kinetics of different processes and the efficacy of antioxidant strategies. The main types of antioxidants, their mechanisms, kinetics, and potential role in modulating ferroptosis are discussed, along with the latest unconventional antioxidant strategies based on the double-sided role of the superoxide/hydroperoxyl radical system.
Article
Chemistry, Physical
Pijun Duan, Xinning Liu, Binhua Liu, Muhammad Akram, Yanwei Li, Jingwen Pan, Qinyan Yue, Baoyu Gao, Xing Xu
Summary: The presence of phosphate was found to increase the effectiveness of PMS activation for pollutants removal in AOPs, promoting the generation of SO4 center dot- through efficient breaking of the O-O bond of PMS. The yields of SO4 center dot- were linearly dependent on phosphate concentration, while the yields of .OH remained constant.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Review
Nutrition & Dietetics
Anna Markowska, Michal Antoszczak, Janina Markowska, Adam Huczynski
Summary: Endometriosis is a chronic disease that affects about 10% of women of reproductive age, causing pain and infertility. Treatment includes medication and surgical removal of lesions, but recurrence rates remain high. This review article focuses on the potential benefits of polyphenols, vitamins, and micronutrients in fighting endometriosis. Although studies have shown promising results in animal models, more well-designed studies are needed to evaluate the effects of dietary factors on women with endometriosis.
Article
Engineering, Environmental
Qiang Bi, Sisi Jiang, Changfeng Hu, Li Zhang, Yilin Zhao, Bo Yang, Guoping Li, Juanqin Xue
Summary: In this study, a N/Co-co-doped graphite gas diffusion electrode (Co-NG GDE) has been prepared and applied in the E-peroxone system. Surprisingly, Co-NG GDE exhibits the highest degradation efficiency for phenol and oxalate, despite its poor performance in the ORR to H2O2. The abundance of O2(center dot-) produced by Co-NG GDE, due to its higher pyridine-N content, can replace H2O2 to form super-active center dot OH.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Jinying Du, Chuang Wang, Zhiwei Zhao, Fuyi Cui, Qin Ou, Jie Liu
Summary: Vacuum UV radiation can generate hydroxyl radicals and H2O2 through the homolysis and ionization of water. Sufficient dissolved oxygen promotes the production and formation rate of H2O2, while UV254 radiation induces the decomposing of H2O2. The study also highlights the unfavorable effects of alkaline conditions and certain anions on H2O2 production.
CHEMICAL ENGINEERING SCIENCE
(2021)
Review
Biochemistry & Molecular Biology
Mohamad Khalil, Hala Abdallah, Danute Razuka-Ebela, Maria Calasso, Maria De Angelis, Piero Portincasa
Summary: Given the important role of gut microbiota in host homeostasis and energy balance, changes in its composition can lead to immune-mediated inflammatory disorders and increased intestinal permeability. Za'atar, a popular plant-based food in the Eastern Mediterranean region, contains antioxidant compounds and fiber that have shown health benefits in cardiovascular and metabolic diseases. Studies have also explored the effects of Za'atar on gut microbiota and gastrointestinal diseases, especially its polyphenols. However, more research is needed on the potential clinical applications of Za'atar as a nutraceutical in gastrointestinal disorders.
Article
Biochemistry & Molecular Biology
Alexandra Mavridi-Printezi, Fabio Mollica, Rosa Lucernati, Marco Montalti, Riccardo Amorati
Summary: Experimental and theoretical studies show that the artificial allomelanin PDHN nanoparticles (PDHN-NP) have higher antioxidant efficiency compared to polydopamine nanoparticles (PDA-NP) due to catalytic cross-termination activity and a high reactivity with hydroperoxyl radicals (HOO), which is attributed to the presence of a H-bond network in PDHN-NP.
Article
Engineering, Environmental
Sin-Yi Liou, Michael C. Dodd
Summary: The reaction of hypochlorous acid with superoxide radical can be a novel nonphotochemical advanced oxidation process, generating hydroxyl radical and various reactive chlorine species, with high radical exposures, simplicity, rapid time-scales, and potential for on-site superoxide generation.
Article
Engineering, Environmental
Kefeng Shang, Rino Morent, Ning Wang, Yongxin Wang, Bangfa Peng, Nan Jiang, Na Lu, Jie Li
Summary: The study shows that persulfate can enhance the degradation of sulfamethoxazole in a water falling film dielectric barrier discharge plasma reactor, with PMS performing better than PDS. Increasing the applied voltage, solution pH, and PMS/PDS concentration promotes SMX degradation. The reactive species generated from the activation of PMS/PDS by discharge plasma play a key role in SMX degradation, with center dot OH and SO4 center dot- being particularly important.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Lenka Kubicova, Franz Hadacek, Wolfram Weckwerth, Vladimir Chobot
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2015)
Article
Chemistry, Inorganic & Nuclear
Vladimir Chobot, Franz Hadacek, Wolfram Weckwerth, Lenka Kubicova
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2015)
Article
Biochemistry & Molecular Biology
Vladimir Chobot, Lenka Kubicova, Gert Bachmann, Franz Hadacek
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2013)
Article
Biochemistry & Molecular Biology
Lenka Kubicova, Franz Hadacek, Vladimir Chobot
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2013)
Editorial Material
Biochemistry & Molecular Biology
Franz Hadacek, Vladimir Chobot
JOURNAL OF CHEMICAL ECOLOGY
(2011)
Correction
Biochemistry & Molecular Biology
Vladimir Chobot, Franz Hadacek
Article
Microbiology
Anastasia Bragina, Stefanie Maier, Christian Berg, Henry Mueller, Vladimir Chobot, Franz Hadacek, Gabriele Berg
FRONTIERS IN MICROBIOLOGY
(2012)
Article
Biochemistry & Molecular Biology
Vladimir Chobot, Franz Hadacek, Gert Bachmann, Wolfram Weckwerth, Lenka Kubicova
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2018)
Article
Biochemistry & Molecular Biology
Lenka Kubicova, Franz Hadacek, Gert Bachmann, Wolfram Weckwerth, Vladimir Chobot
Article
Biochemistry & Molecular Biology
Vladimir Chobot, Franz Hadacek, Gert Bachmann, Wolfram Weckwerth, Lenka Kubicova
Article
Cell Biology
Lenka Kubicova, Gert Bachmann, Wolfram Weckwerth, Vladimir Chobot
Summary: Catechin can form coordination complexes with Fe ions, showing antioxidant properties and potential for the treatment of degenerative diseases such as Alzheimer's and Parkinson's.
Article
Ecology
Sigrid Drage, Birgit Mitter, Doris Engelmeier, Vladimir Chobot, Markus Gorfer, Alice Muchugi, Ramni H. Jamnadass, Angela Sessitsch, Franz Hadacek
FRONTIERS IN ECOLOGY AND EVOLUTION
(2017)
Article
Biochemistry & Molecular Biology
Vladimir Chobot, Franz Hadacek, Gert Bachmann, Wolfram Weckwerth, Lenka Kubicova
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2016)
Article
Chemistry, Medicinal
Vladimir Chobot, Sigrid Drage, Franz Hadacek
NATURAL PRODUCT COMMUNICATIONS
(2011)