ProtonsCarbonProton PumpsCarbon DioxideCarbon MonoxideNanotubes, CarbonProton Pump InhibitorsPositron-Emission TomographyOtoacoustic Emissions, SpontaneousMagnetic Resonance SpectroscopyHydrogen-Ion ConcentrationCarbon Monoxide PoisoningTomography, Emission-ComputedCarbon IsotopesVehicle EmissionsFluorodeoxyglucose F18RadiopharmaceuticalsCarbon FootprintCarbon SequestrationCarbon TetrachlorideTomography, Emission-Computed, Single-PhotonProton-Motive ForceGreenhouse EffectKineticsCarbon RadioisotopesCarbon DisulfideWaterAtmosphereSpectrometry, FluorescenceMethaneFluorine RadioisotopesOxidation-ReductionAir PollutantsHydrogenBacteriorhodopsinsAspartic AcidCarbon Tetrachloride PoisoningProton-Translocating ATPasesModels, MolecularOxygenTemperatureNitrogenBrainProtein ConformationMolecular Sequence DataEnvironmental MonitoringGasesLightModels, ChemicalElectron TransportPentanesVacuolar Proton-Translocating ATPasesBiomassElectron Transport Complex IVMagnetic Resonance ImagingVolatilizationSoilTime FactorsCreatineElectrochemistryTomography, X-Ray ComputedPhotonsMultimodal ImagingFossil FuelsEscherichia coliModels, BiologicalGlucoseHydrogen BondingFluorescent DyesMolecular StructureDicyclohexylcarbodiimideCholinePhotosynthesisBinding SitesFluorescenceGasolineElectronsSootAcetatesBiological TransportSpectrophotometryThermodynamicsSensitivity and SpecificityOxygen ConsumptionAmino Acid SequenceCatalysisDeuteriumValinomycinBacterial ProteinsCarboxyhemoglobinHistidineSchiff BasesMutationSpectrometry, X-Ray EmissionNitrous Oxide2-PyridinylmethylsulfinylbenzimidazolesVolatile Organic CompoundsModels, TheoreticalCerebrovascular CirculationDenitrification