SolventsPulmonary SurfactantsPhase TransitionSurface-Active AgentsPulmonary Surfactant-Associated Protein ARheiformesPulmonary Surfactant-Associated ProteinsWaterSurface TensionApatitesProteolipidsChromatography, High Pressure Liquid1,2-DipalmitoylphosphatidylcholineChromatography, GasPulmonary Surfactant-Associated Protein DPulmonary Surfactant-Associated Protein BAirLiquid Phase MicroextractionSolutionsPulmonary Surfactant-Associated Protein CVolatilizationTemperatureIonic LiquidsPhosphatidylcholinesLipid BilayersSurface PropertiesHydroxyapatitesChemistry, PhysicalPhospholipidsCalcium PhosphatesMembrane FluidityX-Ray DiffractionSolubilityChromatography, LiquidModels, ChemicalMolecular ConformationPhysicochemical PhenomenaSuccinic AcidThermodynamicsLungPulmonary AlveoliMembrane LipidsRespiratory Distress Syndrome, NewbornHydrogen-Ion ConcentrationMaterials TestingLiquid CrystalsCattleBiological ProductsCholesterolPressureDiffusionMicellesPhosphatidylglycerolsCetrimonium CompoundsKineticsAdsorptionTime FactorsPolysorbatesFatty AlcoholsEmulsionsBronchoalveolar Lavage FluidAcetonitrilesLung ComplianceHexanesDioctyl Sulfosuccinic AcidHydrophobic and Hydrophilic InteractionsPolyethylene GlycolsViscosityModels, MolecularLiquid VentilationSodium Dodecyl SulfateBronchoalveolar LavagePaintPoloxamerMass SpectrometryDimethylformamideMethanolTolueneChemistry, PharmaceuticalMolecular StructurePneumocytesAcetoneFluorocarbonsProtein ConformationSpectrophotometry, UltravioletFluorine CompoundsMagnetic Resonance SpectroscopyParticle SizeMacrophages, AlveolarChloroformOilsColloidsPolymersRespiratory Distress Syndrome, AdultMembranes, ArtificialMolecular Sequence DataOrganic ChemicalsApoproteinsPoloxaleneQuaternary Ammonium Compounds