منابع مشابه
Chemistry and biology of spin-trapping radicals associated with halocarbon metabolism in vitro and in vivo.
The spin-trapping method is introduced and discussed. Some chemistry of nitroxides and nitrones is reviewed. Pattern recognition of ESR spectra of nitroxides is outlined. Factors controlling the magnitude of hyperfine splitting constants are mentioned. Methods of assigning spin adducts are listed. Review articles in the literature are referenced. Results in the electrochemical reduction of halo...
متن کاملAromatic Radicals - Acetylene Particulate Matter Chemistry
Enter UU (Unclassified Unlimited) or SAR (Same as Report). An entry in this block is necessary if the abstract is to be limited. Standard Form 298 Back (Rev. 8/98)
متن کاملLipid radicals: properties and detection by spin trapping.
Unsaturated lipids are rapidly oxidized to toxic products such as lipid hydroperoxides, especially when transition metals such as iron or copper are present. In a Fenton-type reaction Fe2+ converts lipid hydroperoxides to the very short-lived lipid alkoxyl radicals. The reaction was started upon the addition of Fe2+ to an aqueous linoleic acid hydroperoxide (LOOH) emulsion and the spin trap in ...
متن کاملSpin Trapping of Radicals in Gas-Phase Cigarette Smoke
Since the spin trapping technique was developed and utilized to determine radicals in the gas phase (see reviews [1—3]), it has become attractive as a method of detecting radicals in gas-phase tobacco smoke. A first study of this sort was reported by Bluhm et al. in 1971 [4], while previous studies were forced to rely on the measurements of smoke condensate at liquid nitrogen temperature [5, 6]...
متن کاملSignal enhancement in ESR spin-trapping for hydroxyl radicals.
In an ESR spin-trapping measurement of hydroxyl radicals formed in a Fenton reaction, the trapping efficiency with DMPO increased by about 300 times in a sodium trifluoroacetate solution, whereas it was little changed in a phosphate buffer.
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ژورنال
عنوان ژورنال: Science
سال: 2003
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.302.5645.535a