Showing 81 - 100 results of 483 for search '"free radical"', query time: 0.07s Refine Results
  1. 81

    Green synthesis of silver and gold nanoparticles using quercetin extracted from Arctium lappa by HPLC, Characterization and Estimation of antioxidant activity by Mahmood Zaki Lafta, Rafah Razooq Hameed Al-Samarrai, Mohamed Bouaziz

    Published 2025-01-01
    “…AgNPs demonstrated superior free radical scavenging activity, indicating their potential use in biomedical applications, notably antioxidant therapy. …”
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    Article
  2. 82

    A Comparative Analysis of the Antioxidant Profiles Generated by the RoXsta<sup>TM</sup> System for Diverse Biological Fluids Highlights the Powerful Protective Role of Human Semina... by Robert J. Aitken, Alexandra Wilkins, Natasha Harrison, Mohammad Bahrami, Zamira Gibb, Kaitlin McIntosh, Quan Vuong, Sarah Lambourne

    Published 2025-01-01
    “…The purpose of this study was to examine its performance utilizing a diverse array of biological fluids including semen, blood plasma, serum, urine, saliva, follicular fluid and plant extracts. (2) Methods: The RoXsta<sup>TM</sup> system was used to assess the ability of different fluids to suppress free radical formation as well as scavenge a variety of toxic oxygen metabolites including free radicals and both hydrogen and organic peroxides. (3) Results: Human semen was shown to have significantly (<i>p</i> < 0.001) more peroxide scavenging power than any other fluid tested (10–14 mM vitamin C equivalent compared with 1–2 mM for blood serum or plasma), while urine was particularly effective in scavenging free radicals and preventing free radical formation (<i>p</i> < 0.001). …”
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  3. 83
  4. 84

    Screening and Characteristics of Lactic Acid Bacteria from Cheese in Yili Area by Kai TANG, Yun WU, Xue WANG, Wenrui MA, Weilin CHEN, Zhenzhen ZHANG, Wenshu HUANG, Muying DU

    Published 2025-02-01
    “…The functional characteristics of screened strains were further evaluated through determination of the free radical scavenging ability and α-glucosidase inhibition rate. …”
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  5. 85

    DNA Damage and Base Excision Repair in Mitochondria and Their Role in Aging by Ricardo Gredilla

    Published 2011-01-01
    “…Due to the proximity of mitochondrial DNA to the main sites of mitochondrial-free radical generation, oxidative stress is a major source of mitochondrial DNA mutations. …”
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  6. 86

    Antioxidant Properties of 5-ASA: Potential Mechanism for Its Anti-Inflammatory Activity by T Yamada, C Volkmer, MB Grisham

    Published 1990-01-01
    “…The authors' laboratory and others have demonstrated that 5-aminosalicylic acid (5-ASA) possesses potent antioxidant activity, including free radical scavenging properties and the ability to decompose neutrophilic oxidants (eg, hypochlorous acid) and detoxify hemoprotein-associated oxidizing agents. 5-ASA has the additional property of being able to chelate iron and render it poorly redox active. …”
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  7. 87

    Beneficial Effects of Apple Vinegar on Hyperglycemia and Hyperlipidemia in Hypercaloric-Fed Rats by Driss Ousaaid, Hassan Laaroussi, Meryem Bakour, Asmae ElGhouizi, Abderrazak Aboulghazi, Badiaa Lyoussi, Ilham ElArabi

    Published 2020-01-01
    “…The results showed that the polyphenolic content in apple vinegar was 148.02±10.16 mg GAE/100 mL, flavonoid content was 22.93±0.73 QE/100 mL, and total antioxidant capacity was 13.4±0.47 mg AAE/100 mL. Free radical IC50 apple vinegar scavenging activity (DPPH) was 0.74±0.154 μL/mL. …”
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  8. 88

    The Effect of Cumin on the Formation of <i>β</i>-Carboline Heterocyclic Amines in Smoked Meat and Simulated Systems by Xiuxiu Liu, Wenyu Chen, Minghao Sun, Xufang Lv, Xing Shen, Zhongping Chai, Maomao Zeng

    Published 2025-01-01
    “…Our study also found that the inhibitory effect of cumin extracts on HCA formation was closely related to their free radical scavenging ability, with the Hetian cumin extract showing the strongest scavenging capacity. …”
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  9. 89

    Synthesis, Characterization and Copolymerization of N-(phenylamino)maleimide with MMA by B. L. Hiran, S. N. Paliwal, Jyoti Choudhary, P. R. Choudhary

    Published 2007-01-01
    “…The free radical copolymerization of N-(phenylamino)maleimide (N-PAMI) was carried. …”
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  10. 90

    Kinetics and Mechanism of the Oxidation of Lactic Acid and Mandelic Acid by Pyridinium Chlorochromate in Aqueous Acidic Medium by Sapana Jain, B. L. Hiran, C. V. Bhatt

    Published 2009-01-01
    “…Products as oxoacids and absence of free radical were confirmed. Suitable reaction mechanism has been proposed.…”
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  11. 91

    Oxidation of Some Aliphatic Alcohols by Pyridinium Chlorochromate -Kinetics and Mechanism by Sapana Jain, B. L. Hiran, C. V. Bhatt

    Published 2009-01-01
    “…Products are carbonyl compounds and free radical absence was proved. A tentative mechanism has been proposed.…”
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    Article
  12. 92

    The Oxidation of 2-(2-Methoxyethoxy)ethanol and 2-(2-Ethoxyethoxy)ethanol by Ditelluratocuprate(III): A Kinetic and Mechanistic Study by Jin-huan Shan, Yi Li, Shu-ying Huo, Cai-hong Yin

    Published 2013-01-01
    “…A suitable assumption involving preequilibriums before the rate-controlling step and a free radical mechanism was proposed, based on the kinetic data. …”
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  13. 93

    Study of the Effect of Grafted Antioxidant on the Acrylonitrile-Butadiene Copolymer Properties by Abdulaziz Ibrahim Al-Ghonamy, Mirham A. Barakat

    Published 2010-01-01
    “…Benzoyl peroxide was used to initiate the free-radical grafting copolymerization. Natural rubber-graft-N-(4-aminodiphenylether) acrylamide (NR-g-ADPEA) was characterized with an IR technique. …”
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  14. 94

    Kinetics and Mechanism of Oxidation of t-Butylbenzylamine by Diperiodatoargentate(III) in Aqueous Alkali by Mahantesh A. Angadi, Suresh M. Tuwar

    Published 2012-01-01
    “…The polymerization test revealed that oxidation was occurred with the intervention free radical. A suitable mechanism was proposed for a middle range of [OH–]. …”
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  15. 95

    Day and Night GSH and MDA Levels in Healthy Adults and Effects of Different Doses of Melatonin on These Parameters by Shilpa Chakravarty, Syed Ibrahim Rizvi

    Published 2011-01-01
    “…The pineal secretory product melatonin (chemically, N-acetyl-5-methoxytryptamine) acts as an effective antioxidant and free-radical scavenger and plays an important role in several physiological functions such as sleep induction, immunomodulation, cardiovascular protection, thermoregulation, neuroprotection, tumor-suppression and oncostasis. …”
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  16. 96

    Neuroinflammation and Cerebrovascular Disease in Old Age: A Translational Medicine Perspective by Mario Di Napoli, Imtiaz M. Shah

    Published 2011-01-01
    “…Neuroinflammation and oxidative stress are important pathogenic processes occurring during the acute phase of cerebral ischemia. Free radical generation is also implicated in the aging process, and the combination of these effects in elderly stroke patients could explain the higher risk of morbidity and mortality. …”
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  17. 97

    Electron Beam Synthesis and Characterization of Acrylamide/Acrylic Acid Hydrogels Using Trimethylolpropane Trimethacrylate as Cross-Linker by Gabriela Craciun, Elena Manaila, Maria Daniela Stelescu

    Published 2016-01-01
    “…The purpose of the paper is to present the synthesis and characterization of hydrogels prepared by free-radical copolymerization of acrylamide and acrylic acid in aqueous solutions using potassium persulfate as initiator and trimethylolpropane trimethacrylate as cross-linker, via the radiation technique. …”
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  18. 98

    Synergistic enhancement of hydrophobic dental adhesives: autonomous strengthening, polymerization kinetics, and hydrolytic resistance by Burak Korkmaz, Erhan Demirel, Qiang Ye, Qiang Ye, Anil Misra, Anil Misra, Candan Tamerler, Candan Tamerler, Candan Tamerler, Paulette Spencer, Paulette Spencer, Paulette Spencer

    Published 2024-04-01
    “…This paper reports a self-strengthening adhesive formulation that resists hydrolysis-mediated degradation by providing intrinsic reinforcement of the polymer network through synergistic stimulation of free-radical polymerization, sol-gel reaction, and hydrophobicity. …”
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  19. 99

    PHYSIOLOGICAL EFFICACY OF MELANIN AS A FOOD INGREDIENT by N. Cherno, A. Kapustian, K. Naumenko, L. Gural, S. Osolina

    Published 2024-05-01
    “…In biological systems melanin performs several important functions including photoprotection, free radical scavenging and antioxidation, metal chelation, electrical and photoconductivity. …”
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  20. 100

    Chemistry and Biological Activities of Flavonoids: An Overview by Shashank Kumar, Abhay K. Pandey

    Published 2013-01-01
    “…Many flavonoids are shown to have antioxidative activity, free radical scavenging capacity, coronary heart disease prevention, hepatoprotective, anti-inflammatory, and anticancer activities, while some flavonoids exhibit potential antiviral activities. …”
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