DimethylpolysiloxanesSiliconesMicrofluidic Analytical TechniquesMicrotechnologyMicrofluidicsLab-On-A-Chip DevicesSiloxanesMyocytes, CardiacSubstrate SpecificityEquipment DesignSurface PropertiesNylonsSolid Phase MicroextractionPolystyrenesNanotechnologyCell Culture TechniquesSiliconMicrochemistrySilicone ElastomersCoated Materials, BiocompatiblePolymersKineticsBiocompatible MaterialsGlassMyocardiumEquipment Failure AnalysisNanostructuresMaterials TestingMolecular Sequence DataElectrodesMembranes, ArtificialAmino Acid SequenceMicroscopy, Electron, ScanningCells, CulturedCalibrationBinding SitesCell AdhesionTime FactorsCatalysisHeartModels, MolecularProtein BindingAnimals, NewbornPhosphorylationHydrolysisCardiomegalyEscherichia coliRecombinant ProteinsReproducibility of ResultsCatalytic DomainHydrogen-Ion ConcentrationMyocardial ContractionRats, Sprague-DawleyBase SequenceEnzyme ActivationRats, WistarProtein Structure, TertiaryCrystallography, X-RayCalciumSignal TransductionProtein ConformationMutationCell LineHeart VentriclesOxidation-ReductionMutagenesis, Site-DirectedSequence Homology, Amino AcidAdenosine TriphosphateEnzyme InhibitorsStructure-Activity RelationshipMitochondria, Heart