Results 31 to 40 of about 268,094 (306)

Proteomic analysis of hydroxyl radical-induced resuscitation of hypoxia-induced dormant mycobacterial cells

open access: yesInternational Journal of Mycobacteriology, 2018
Background: The genus Mycobacterium has an ability to persist in hostile environments for years before its reactivation in favorable conditions. The major bottleneck in decades of mycobacterial research is a poor understanding of molecular mechanism ...
Abhishek Mishra
doaj   +1 more source

Separation and antioxidant activities of new acetylated EGCG compounds

open access: yesScientific Reports, 2023
Acetylation could improve the bioavailability of (-)-Epigallocatechin-3-Gallate (EGCG), but the relationship of substitution degree and antioxidant capacity of acetylated EGCG was unclear.
Jianyong Zhang   +6 more
doaj   +1 more source

Inactivation of Salmonella Enteritidis on Hatchery and Table Eggs Using a Gas-phase Hydroxyl-Radical Process

open access: yesJournal of Food Protection, 2023
Eggs represent a significant vehicle for Salmonella Enteritidis with the pathogen being transferred to chicks in the hatchery, or to consumers via table eggs.
Brenda Zai   +7 more
doaj   +1 more source

Mid-infrared signatures of hydroxyl containing water clusters: Infrared laser Stark spectroscopy of OH–H2O and OH(D2O)n (n = 1-3) [PDF]

open access: yes, 2015
Small water clusters containing a single hydroxyl radical are synthesized in liquid helium droplets. The OH–H2O and OH(D2O)n clusters (n = 1-3) are probed with infrared laser spectroscopy in the vicinity of the hydroxyl radical OH stretch vibration ...
Brice, Joseph T.   +6 more
core   +1 more source

Antioxidant activitiy of Lactobacillus plantarum , Lactobacillus sake and Lactobacillus curvatus strains isolated from fermented Turkish Sucuk [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2020
In recent years, it is very important to find more safe and natural antioxidants than biological sources to replace synthetic antioxidants. The antioxidant properties of 22 lactic acid bacteria were investigated in vitro in the present study.
MÜRÜVVET DÜZ   +2 more
doaj   +1 more source

Potential effects of rainwater-borne H2O2 on competitive degradation of herbicides and in the presence of humic acid [PDF]

open access: yes, 2017
In a previous piece of work, we reported some preliminary experimental results showing that hydrogen peroxide at a concentration range frequently encountered in rainwater could lead to degradation of three common herbicides (diuron, butachlor and ...
Arroyave   +41 more
core   +1 more source

Photochemistry of the Cloud Aqueous Phase: A Review

open access: yesMolecules, 2020
This review paper describes briefly the cloud aqueous phase composition and deeply its reactivity in the dark and mainly under solar radiation. The role of the main oxidants (hydrogen peroxide, nitrate radical, and hydroxyl radical) is presented with a ...
Angelica Bianco   +3 more
doaj   +1 more source

Synthesis of lignin based composites of TiO2 for potential application as radical scavengers in sunscreen formulation

open access: yesBMC Chemistry, 2019
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,
Mohamad Nasir Mohamad Ibrahim   +4 more
doaj   +1 more source

Hydroxyl radical reactivity at the air-ice interface [PDF]

open access: yesAtmospheric Chemistry and Physics, 2010
Hydroxyl radicals are important oxidants in the atmosphere and in natural waters. They are also expected to be important in snow and ice, but their reactivity has not been widely studied in frozen aqueous solution. We have developed a spectroscopic probe
T. F. Kahan, R. Zhao, D. J. Donaldson
doaj  

Hypothesis:soluble Aβ oligomers in association with redox-active metal ions are the optimal generators of reactive oxygen species in Alzheimer's disease [PDF]

open access: yes, 2010
Considerable evidence points to oxidative stress in the brain as an important event in the early stages of Alzheimer's disease (AD). The transition metal ions of Cu, Fe, and Zn are all enriched in the amyloid cores of senile plaques in AD.
Allsop, David   +2 more
core   +5 more sources

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