Results 31 to 40 of about 10,849 (224)
Ab Initio Study of Some Persistent Nitroxide Radicals
CHIMIA, 2008 Stable free radicals have a variety of applications. Particularly, the aminoxyl group is frequently used in spin-labeling experiments. Nitroxides may also exhibit intriguing chiral and magnetic properties, and can be of interest for studies of ...
L'uboš Horný +2 more
doaj +1 more source
Computational study of radicals derived from hydroxyurea and its methylated analogues. [PDF]
, 2012 Structural and electronic properties and chemical fate of free radicals generated from hydroxyurea (HU) and its methylated analogues N-methylhydroxyurea (NMHU) and O-methylhydroxyurea (OMHU) are of utmost importance for their biological and ...
Birus, Mladen +4 more
core +1 more source
Advanced Engineering Research, 2019 Introduction. Polymeric materials (PM) are increasingly used in various industries and agriculture. Under the action of UV light, PM are destroyed. UV stabilizers are used to protect PM from photodegradation.
I. Yu. Zhukova +3 more
doaj +1 more source
An Orally Administered Redox Nanoparticle That Accumulates in the Colonic Mucosa and Reduces Colitis in Mice [PDF]
, 2012 Background & AimsDrugs used to treat patients with ulcerative colitis are not always effective because of nonspecific distribution, metabolism in the gastrointestinal tract, and side effects. We designed a nitroxide radical-containing nanoparticle (RNPO)
Matsui Hirofumi +6 more
core +1 more source
Angewandte Chemie, EarlyView.Compositionally engineered mixed solvated cocrystals enable modulation of thermosalient actuation. Guest ratio controls thermosalient temperature and propulsion intensity, providing a tunable platform for designing crystalline systems that exhibit stimuli‐responsive mechanical motion.
Ernesto A. Hernández‐Morales +5 more
wiley +2 more sources
Fluorescence quenching of aromatic hydrocarbons by nitroxide radicals: a mechanismatic study
International Journal of Photoenergy, 1999 The fluorescence quenching of phenanthrene (Phen), 9-cyanophenanthrene (CPhen), 9-cyanoanthracene (CA), perylene (Per), 9,10-dicyanoanthracene (DCA), and 9,10-diphenylanthracene (DPA) using stable nitroxide radicals as quenchers has been studied by ...
Tarek A. Fayed +2 more
doaj +1 more source
Studies on the antioxidative activity of red pigments in Italian-type dry-cured ham [PDF]
, 2003 Aqueous phosphate buffer extracts and acetone/water extracts of pigments from Parma ham were assessed as antioxidants by (1) electron spin resonance spectroscopy using a spin probing technique to evaluate their efficiencies as scavengers of free radicals,
Adamsen, Christina E. +3 more
core +1 more source
2-(Fluoromethyl)-4,7-dimethoxy-1-methyl-1H-benzimidazole
Molbank, 2020 Selectfluor (1-chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate)) substitutes the TEMPO free radical with fluorine on 4,7-dimethoxy-1-methyl-2-{[(2,2,6,6-tetramethylpiperidin-1-yl)oxy]methyl}-1H-benzimidazole to give the title
Patrick Kielty +3 more
doaj +1 more source
Antioxidant activity of wines and related matters studied by EPR spectroscopy
Czech Journal of Food Sciences, 2008 Antioxidant activity and free radicals were studied in various parts of Vitis vinifera plant in vivo and in wines using EPR spectroscopy. Antioxidative properties of polyphenolic substances play an important role for the evaluation of quality of natural ...
Pavel STOPKA +6 more
doaj +1 more source
, 2003 Imidazoline-based nitroxide radicals are often used as spin probes for medium acidity and polarity in different systems. In this work, using the density functional theory (DFT) approach, we have studied how physico-chemical characteristics (geometry ...
Ikryannikova, Larissa N. +2 more
core +1 more source