1,2-DipalmitoylphosphatidylcholinePulmonary SurfactantsLipid BilayersCalorimetry, Differential ScanningProteolipidsPulmonary Surfactant-Associated Protein APulmonary Surfactant-Associated ProteinsLiposomesMolecular ConformationSurface-Active AgentsMembrane FluidityPhosphatidylcholinesPhosphatidylglycerolsSurface TensionMembranes, ArtificialPhase TransitionPulmonary Surfactant-Associated Protein BPhospholipidsWaterSurface PropertiesBiophysicsGelsBiophysical PhenomenaAirDimyristoylphosphatidylcholineTemperatureDiphenylhexatrieneThermodynamicsModels, ChemicalPressureX-Ray DiffractionPulmonary Surfactant-Associated Protein DTetraphenylborateMelittenMembrane LipidsAdsorptionLiquid CrystalsPulmonary AlveoliPhosphatidylethanolaminesMicroscopy, Atomic ForceMicellesSpectroscopy, Fourier Transform InfraredComplex MixturesCholesterolCalorimetry4-Chloro-7-nitrobenzofurazanPulmonary Surfactant-Associated Protein CLungSphingomyelinsFatty AlcoholsSpectrophotometry, Infrared2-NaphthylamineScattering, RadiationDeuteriumMolecular StructureLauratesSpin LabelsPhospholipases A2Magnetic Resonance SpectroscopySolutionsKineticsSpectrometry, FluorescenceModels, MolecularPhospholipasesFluorescence PolarizationPhosphatidylserinesPhospholipid EthersLipidsComputer SimulationGramicidinPhospholipases AStatic ElectricityChemistry, PhysicalPhysicochemical PhenomenaMembranesErgosterolElectron Spin Resonance SpectroscopyPermeabilityMotionFluorescent DyesMicroscopy, FluorescenceRespiratory Distress Syndrome, NewbornMembrane MicrodomainsCholineStructure-Activity RelationshipPolyethylene GlycolsDiffusionBiological ProductsSwineParticle SizeDrug CarriersCetrimonium CompoundsMathematicsHydrogen BondingSolubilityFluoresceinsModels, BiologicalModels, TheoreticalHydrogen-Ion ConcentrationCrystallization