Results 241 to 250 of about 689,770 (290)

Spin Trapping of Inorganic Radicals

Free Radical Research Communications, 1990
The use of nitrose compounds and nitrones as spin traps for the detection of short-lived inorganic radicals is discussed. To a certain degree nitrones and nitroso compounds are complementary. While nitroso compounds are superior with respect to spin trapping metal-centred radicals, nitrones form more persistent spin adducts with most small inorganic ...
D, Rehorek, H, Hennig, C M, Dubose, T J, Kemp, E G, Janzen   +4 more
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Spin-trapping of superoxide ion by a water-soluble, nitroso-aromatic spin-trap

Biochemical and Biophysical Research Communications, 1986
Spin-trapping of superoxide ion, O2-, which is produced from two different sources (OH(-)-DMSO and xanthine-xanthine oxidase systems), was investigated by use of a water-soluble, notroso-aromatic spin trap, sodium 3,5-dibromo-4-nitrosobenzene-sulfonate (DBNBS).
T, Ozawa, A, Hanaki
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Spin trapping compounds [PDF]

, 1997
Compositions containing as the active ingredient a spin-trapping reagent, preferably α-phenyl butyl nitrone (PBN) or spin-trapping derivatives thereof, in a suitable pharmaceutical carrier for administration to a patient are disclosed for treating or ...
CARNEY JOHN M, FLOYD ROBERT A
core   +3 more sources

Unique in vivo applications of spin traps

Free Radical Biology and Medicine, 2001
The ultimate goal of in vivo electron spin resonance (ESR) spin trapping is to provide a window to the characterization and quantification of free radicals with time within living organisms. However, the practical application of in vivo ESR to systems involving reactive oxygen radicals has proven challenging.
L J, Berliner, V, Khramtsov, H, Fujii, T L, Clanton   +3 more
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Redox and spin-trapping properties of phosphoryldithioacetates

Phys. Chem. Chem. Phys., 2005
The redox properties of ethyl diethoxyphosphoryldithioacetate (1), methyl diethoxyphosphorylfluorodithioacetate (2) and methyl diethoxyphosphoryldifluorodithioacetate (3) were measured by cyclic voltammetry. Addition of free radicals to the three dithioesters led to the detection of the ESR spectra of the spin adducts only with the last two compounds ...
A Alberti, M Guerra, P Hapiot, T Lequeux, D Macciantelli, S Masson   +5 more
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Spin trapping

2009
Non ...
A Alberti, D Macciantelli
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Development and Application of Spin Traps, Spin Probes, and Spin Labels

2015
This chapter focuses on major achievements of the last decade in the synthesis and applications of spin traps, spin probes, and spin labels. Our discussion on spin trapping is mainly concerned with novel aspects of nitrones used as spin traps and with the kinetics caused by bioreductants. The second part of the chapter deals with recent developments in
Elena G, Bagryanskaya, Olesya A, Krumkacheva, Matvey V, Fedin, Sylvain R A, Marque   +3 more
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Nitrosocarbonylbenzene as a spin trap

Tetrahedron Letters, 1983
Abstract Nitrosocarbonylbenzene spin traps only nucleophilic carbon radicals. With nitrosoarenes it yields diaryl nitroxides and readily gives rise to acyl nitroxides on reaction with alkenes.
Alexander R. Forrester, John Henderson, Karen Reid   +2 more
openaire   +1 more source

Biological spin trapping II. Toxicity of nitrone spin traps: dose-ranging in the rat

Journal of Biochemical and Biophysical Methods, 1995
To obtain the strongest possible free radical spin adduct signal using the electron paramagnetic resonance spectroscopy-spin trapping technique, it is desirable to load an animal with the highest dose of spin trap possible. One hundred and twenty six male Sprague-Dawley rats were used to establish the toxic dose range for PBN (alpha-phenyl N-tert butyl
E G, Janzen, J L, Poyer, C F, Schaefer, P E, Downs, C M, DuBose   +4 more
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Spin trapping of superoxide, alkyl- and lipid-derived radicals with derivatives of the spin trap EPPN

Biochemical Pharmacology, 2003
The N-t-butyl-alpha-phenylnitrone derivative N-2-(2-ethoxycarbonyl-propyl)-alpha-phenylnitrone (EPPN) has recently been reported to form a superoxide spin adduct (t(1/2)=5.25 min at pH 7.0), which is considerably more stable than the respective N-t-butyl-alpha-phenylnitrone or 5,5-dimethylpyrroline N-oxide adducts (t(1/2) approximately 10 and 45s ...
Klaus, Stolze, Natascha, Udilova, Thomas, Rosenau, Andreas, Hofinger, Hans, Nohl   +4 more
openaire   +2 more sources