Surface TensionPulmonary SurfactantsSurface-Active AgentsPulmonary Surfactant-Associated Protein BAirAdsorptionPulmonary Surfactant-Associated ProteinsSurface PropertiesProteolipidsPulmonary Surfactant-Associated Protein AWaterPhysical Processes1,2-DipalmitoylphosphatidylcholinePulmonary AlveoliViscosityPulmonary Surfactant-Associated Protein CWetting AgentsPhosphatidylglycerolsPharmaceutical SolutionsLung ComplianceFunctional Residual CapacityPhospholipidsMicellesBiological ProductsLipid BilayersSolutionsPressureWettabilityPhase TransitionPhosphatidylcholinesTotal Lung CapacityAlkanesElasticityMembranes, ArtificialBiophysical PhenomenaBiophysicsLung Volume MeasurementsDimethylpolysiloxanesLungThermodynamicsSiloxanesModels, ChemicalMuscle ContractionSiliconesModels, BiologicalEustachian TubeComplex MixturesStress, MechanicalSolventsTemperatureRespiratory Physiological PhenomenaMicroscopy, Atomic ForceHydrophobic and Hydrophilic InteractionsMicrofluidicsEmulsionsHyaline Membrane DiseasePulmonary Surfactant-Associated Protein DPharmaceutical VehiclesGramicidin