Electron Spin Resonance SpectroscopySpin LabelsFree RadicalsCyclic N-OxidesSpin TrappingMagnetic Resonance SpectroscopyHydroxyl RadicalNitrogen OxidesHydroxidesSuperoxidesOxidation-ReductionFree Radical ScavengersMembrane LipidsReactive Oxygen SpeciesQuinonesTemperatureOxidative StressNitric OxideElectronsMicroscopy, ElectronElectron TransportMagnetic Resonance ImagingMicroscopy, Electron, ScanningDimyristoylphosphatidylcholineMolecular ConformationMembrane FluidityCreatineSpectrum AnalysisPhosphatidylcholinesLipid BilayersKineticsProtein ConformationProtonsPhosphocreatineStearic AcidsOxygenHydrogen-Ion ConcentrationHydrogen PeroxideCholineCobalt IsotopesAspartic AcidModels, MolecularWaterIronModels, ChemicalSpectrophotometryNuclear Magnetic Resonance, Biomolecular1,2-DipalmitoylphosphatidylcholineMicrowavesCopperMolecular StructurePeroxidesMicroscopy, Electron, TransmissionAscorbic AcidLiposomesMembranes, ArtificialSpectrometry, FluorescenceBinding SitesSolutionsSarcoma, YoshidaThermodynamicsProtein BindingXanthine OxidaseBrainUnithiolIodoacetamideCattleSpectroscopy, Near-InfraredChemistryBiophysical PhenomenaPhospholipidsChemical PhenomenaMelaninsThiramMagneticsMathematicsBiophysicsBenzoquinonesMolecular Sequence DataManganeseHemeAntioxidantsSuperoxide DismutaseNitroso CompoundsTime Factors