Electron Spin Resonance SpectroscopySpin LabelsFree RadicalsCyclic N-OxidesSpin TrappingMagnetic Resonance SpectroscopyNitrogen OxidesHydroxyl RadicalHydroxidesSuperoxidesFree Radical ScavengersMembrane LipidsOxidation-ReductionReactive Oxygen SpeciesQuinonesTemperatureNitric OxideOxidative StressMuscle RelaxationMagnetic Resonance ImagingElectronsDimyristoylphosphatidylcholineMolecular ConformationElectron TransportMembrane FluidityCreatineMicroscopy, ElectronPhosphatidylcholinesSpectrum AnalysisLipid BilayersProtonsPhosphocreatineKineticsProtein ConformationStearic AcidsNuclear Magnetic Resonance, BiomolecularCholineOxygenWaterAspartic AcidCobalt IsotopesHydrogen PeroxideHydrogen-Ion ConcentrationMicroscopy, Electron, ScanningModels, Chemical1,2-DipalmitoylphosphatidylcholineModels, MolecularIronMicrowavesPeroxidesCopperMolecular StructureSpectrophotometrySolutionsAscorbic AcidMembranes, ArtificialSpectrometry, FluorescenceLiposomesThermodynamicsSarcoma, YoshidaXanthine OxidaseBinding SitesUnithiolBiophysical PhenomenaProtein BindingMathematicsBrainIodoacetamideCattleSpectroscopy, Near-InfraredMagneticsChemistryBiophysicsThiramChemical PhenomenaPhospholipidsMelaninsSuperoxide DismutaseViscosityNitroso CompoundsManganeseAntioxidantsBenzoquinonesTime Factors