Results 21 to 30 of about 145,800 (349)

Photocatalytic oxidation of methyl tert-butyl ether in presence of various phase compositions of TiO2 [PDF]

open access: yes, 2019
MTBE (methyl tert-butyl ether) represents a rising threat to the environment, especially drinking water, and its effective removal (with all by-products) is necessary.
Hrádková, Květoslava   +5 more
core   +1 more source

Direct and indirect air particle cytotoxicity in human alveolar epithelial cells [PDF]

open access: yes, 2014
Air particulate matter has been associated with adverse impact on the respiratory system leading to cytotoxic and proinflammatory effects. The biological mechanisms behind these associations may be initiated by inhaled small size particles, particle ...
Astort, Francisco   +5 more
core   +1 more source

Superoxide anions enhance platelet adhesion and aggregation [PDF]

open access: yesBritish Journal of Pharmacology, 1989
Superoxide dismutase (SOD, 60 u ml−1) or ferricytochrome c (70 μm) significantly inhibited thrombin‐stimulated platelet adhesion to gelatin‐coated plastic, whereas catalase (1000 u ml−1) or mannitol (1 mm) had no effect. The platelet aggregation induced by low concentrations of thrombin (causing less than 45% maximal change in light transmission) was ...
D, Salvemini   +3 more
openaire   +2 more sources

Nitric oxide alleviates cadmium- but not arsenic-induced damages in rice roots [PDF]

open access: yes, 2020
Nitric oxide (NO) has signalling roles in plant stress responses. Cadmium (Cd) and arsenic (As) soil pollutants alter plant development, mainly the root-system, by increasing NO-content, triggering reactive oxygen species (ROS), and forming peroxynitrite
Altamura, M. M.   +6 more
core   +1 more source

An Anionic, Tetragonal Copper(II) Superoxide Complex [PDF]

open access: yesJournal of the American Chemical Society, 2010
Insight into copper-oxygen species proposed as intermediates in oxidation catalysis is provided by the identification of a Cu(II)-superoxide complex supported by a sterically hindered, pyridinedicarboxamide ligand. A tetragonal, end-on superoxide structure is proposed based on DFT calculations and UV-vis, NMR, EPR, and resonance Raman spectroscopy. The
Patrick J, Donoghue   +4 more
openaire   +2 more sources

Lipoxygenase-mediated transformation of human low density lipoprotein to an oxidized and cytotoxic complex.

open access: yesJournal of Lipid Research, 1991
We have been studying the mechanisms involved in the oxidative modification of low density lipoprotein (LDL) that lead to its transformation to a cytotoxic complex.
MK Cathcart, AK McNally, GM Chisolm
doaj   +1 more source

Superoxide Radical Dismutation as New Therapeutic Strategy in Parkinson’s Disease [PDF]

open access: yes, 2017
open4siAging is the biggest risk factor for developing many neurodegenerative disorders, including idiopathic Parkinson's disease (PD). PD is still an incurable disorder and the available medications are mainly directed to the treatment of symptoms in ...

core   +1 more source

Properties of Reactive Oxygen Species by Quantum Monte Carlo [PDF]

open access: yes, 2014
The electronic properties of the oxygen molecule, in its singlet and triplet states, and of many small oxygen-containing radicals and anions have important roles in different fields of Chemistry, Biology and Atmospheric Science.
Andrea Zen   +3 more
core   +2 more sources

Carbon-sulfur bond strength in methanesulfinate and benzenesulfinate ligands directs decomposition of Np(v) and Pu(v) coordination complexes. [PDF]

open access: yes, 2020
Gas-phase coordination complexes of actinyl(v) cations, AnO2+, provide a basis to assess fundamental aspects of actinide chemistry. Electrospray ionization of solutions containing an actinyl cation and sulfonate anion CH3SO2- or C6H5SO2- generated ...
Gibson, John K   +4 more
core   +3 more sources

Neopterin as an Endogenous Antioxidant

open access: yesPteridines, 1995
The in vitro antioxidative activity of neopterin and its in vivo potency to suppress gastric ischemia were investigated. The scavenging activity of the reduced form of neopterin, 5,6,7,8-tetrahydroneopterin (NPH4), against superoxide anion radicals ...
Kojima Shuji
doaj   +1 more source

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