Results 31 to 40 of about 1,309,791 (290)
RIXS Reveals Hidden Local Transitions of the Aqueous OH Radical [PDF]
Phys. Rev. Lett. 124, 236001 (2020), 2020 Resonant inelastic x-ray scattering (RIXS) provides remarkable opportunities to interrogate ultrafast dynamics in liquids. Here we use RIXS to study the fundamentally and practically important hydroxyl radical in liquid water, OH(aq). Impulsive ionization of pure liquid water produced a short-lived population of OH(aq), which was probed using ...
arxiv +1 more source
Free radical degradation in aqueous solution by blowing hydrogen and carbon dioxide nanobubbles
Scientific Reports, 2021 The main findings are the hydroxyl radical scavenging and the superoxide anion diminishing by mixing the carbon dioxide (CO2) nanobubbles after hydrogen nanobubble blowing in water and alcohol aqueous solution.
Toyohisa Fujita +8 more
doaj +1 more source
Capture of Hydroxyl Radicals by Hydronium Cations in Water Microdroplets.
Angewandte Chemie, 2022 Despite the high stability of bulk water, water microdroplets possess strikingly different properties, such as the presence of hydroxyl radicals (OH•) at the air-water interface.
Dong Xing +6 more
semanticscholar +1 more source
Phase Space Manipulation of Cold Free Radical OH Molecules [PDF]
Phys. Rev. Lett. 91, 243001 (2003), 2003 We report bunching, slowing, and acceleration of a supersonically cooled beam of diatomic hydroxyl radicals (OH). \textit{In situ} observation of laser-induced fluorescence along the beam propagation path allows for detailed characterization of longitudinal phase-space manipulation of OH molecules through the Stark effect by precisely sequenced ...
arxiv +1 more source
Hydroxyl Radical Induced Ultra-Weak Photon Emission from Tyrosine Solutions
Communications, 2015 This paper deals with ultra-weak photon emission (UPE) from aqueous tyrosine solutions induced by hydroxyl radical. The physical nature of this specific phenomenon is presented and the proposed mechanism of its origin during oxidation of tyrosine is ...
Martin Bereta +4 more
doaj +1 more source
Recombination of Geminate (OH,eaq-) Pairs in Concentrated Alkaline Solutions: Lack of Evidence For Hydroxyl Radical Deprotonation [PDF]
, 2004 Picosecond dynamics of hydrated electrons and hydroxyl radicals generated in 200 nm photodissociation of aqueous hydroxide and 400 nm (3-photon) ionization of water in concentrated alkaline solutions were obtained. No deprotonation of hydroxyl radicals was observed on sub-nanosecond time scale, even in 1-10 M KOH solutions. This result is completely at
arxiv +1 more source
Photochemistry of the Cloud Aqueous Phase: A Review
Molecules, 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
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Separation and antioxidant activities of new acetylated EGCG compounds
Scientific 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
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Nanomaterials, 2021 In this work, the application of high-power LED365nm and commercial, low-price LED398nm for heterogeneous photocatalysis with TiO2 and ZnO photocatalysts are studied and compared, focusing on the effect of light intensity, photon energy, quantum yield ...
Máté Náfrádi +3 more
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Reactive Molecular Dynamics study on the first steps of DNA-damage by free hydroxyl radicals [PDF]
J. Phys. Chem. A 115, 11045 (2011), 2011 We employ a large scale molecular simulation based on bond-order ReaxFF to simulate the chemical reaction and study the damage to a large fragment of DNA-molecule in the solution by ionizing radiation. We illustrate that the randomly distributed clusters of diatomic OH-radicals that are primary products of megavoltage ionizing radiation in water-based ...
arxiv +1 more source