Spin LabelsElectron Spin Resonance SpectroscopyPerfusionCyclic N-OxidesSpin TrappingPerfusion ImagingNitrogen OxidesMyocardial Perfusion ImagingMembrane FluidityTriacetoneamine-N-OxylDimyristoylphosphatidylcholineStearic AcidsMesylatesProtein ConformationLipid BilayersMembrane LipidsPhosphatidylcholinesModels, MolecularTemperatureMembranes, ArtificialTomography, Emission-Computed, Single-PhotonCholestanesMagnetic Resonance SpectroscopyMicrowavesMaleimidesAffinity LabelsMolecular ConformationChemotherapy, Cancer, Regional PerfusionPhospholipidsNanodiamondsIodoacetamideCoronary CirculationAndrostanesCerebrovascular CirculationBinding SitesKineticsRabbitsBacteriophage T4MagnetometrySulfhydryl CompoundsBiophysical PhenomenaProtein Structure, SecondaryPiperidonesMathematicsModels, ChemicalDiffusionCysteineMagneticsErythrocyte MembraneProtein BindingLiposomesRotationViscosityRegional Blood FlowBiophysicsMotionMyosinsThermodynamicsOxygenContrast MediaTime FactorsTechnetium Tc 99m SestamibiMagnetic Resonance ImagingOrganotechnetium CompoundsMagnetic Resonance AngiographyMicellesWaterCell MembraneAvidinFree RadicalsMolecular StructureErythrocytesMuramidaseImage EnhancementMembrane ProteinsMembranesSpectrometry, FluorescenceCattle