Particle SizeNanospheresMicroscopy, ElectronPowdersNanoparticlesChemistry, PharmaceuticalVirionMicroscopy, Electron, ScanningVirus AssemblyDrug CarriersMicroscopy, Electron, TransmissionCentrifugation, Density GradientLipoproteins, HDLMicrospheresGene Products, gagSurface PropertiesApolipoprotein A-ICapsidAerosolsDrug CompoundingCell LineElectrophoresis, Polyacrylamide GelModels, ChemicalTechnology, PharmaceuticalSuspensionsExcipientsEmulsionsColloidsLipoproteins, LDLChitosanInhalation ExposureSilicon DioxidePolyglycolic AcidDrug Delivery SystemsSolubilityMetal NanoparticlesNanocapsulesDrug StabilityPowder DiffractionNebulizers and VaporizersMaterials TestingPolymethacrylic AcidsWettabilityLipoproteinsParticulate MatterDelayed-Action PreparationsNanostructuresQuartzFreeze DryingDigestionAnimal FeedAir Pollutants, OccupationalPorosityPolymersPolystyrenesCalorimetry, Differential ScanningNanomedicinePolyethylene GlycolsSignal Recognition ParticleLipidsFiltrationPoloxamerApolipoproteinsSilverDustNanotechnologyAdministration, InhalationTriglyceridesEnvironmental MonitoringTabletsDosage FormsAir PollutantsLiposomesPovidoneLatexTitaniumCholesterol, HDLX-Ray DiffractionMasticationPoaceaeMetered Dose InhalersFreeze FracturingMethylcelluloseAir MovementsLipoproteins, VLDLCelluloseAdministration, OphthalmicRespiratory Protective DevicesWaterSurface-Active AgentsDiffusionAir MicrobiologyVaccines, Virus-Like ParticleEquipment DesignSpectroscopy, Fourier Transform InfraredBiological AvailabilityEmulsifying AgentsPolyvinyl AlcoholChromatography, Supercritical FluidApolipoproteins B