OxidesSilanesSurface PropertiesTitaniumAdsorptionNitric Oxide SynthaseNitric Oxide Synthase Type IINitric Oxide Synthase Type IIINitric Oxide Synthase Type INitrogen OxidesZinc OxideNG-Nitroarginine Methyl EsterNitritesArginineomega-N-MethylarginineEnzyme InhibitorsNitratesAmino Acid OxidoreductasesS-Nitroso-N-AcetylpenicillamineCyclic GMPNitroprussidePenicillamineNitroso CompoundsEndothelium, VascularFerrosoferric OxideMagnesium OxideVasodilationMolsidomineRats, Sprague-DawleyGuanylate CyclaseFerric CompoundsS-NitrosoglutathioneVasodilator AgentsAluminum OxideCitrullineCells, CulturedRats, WistarDose-Response Relationship, DrugS-NitrosothiolsDeuterium OxideBiopterinMagnetite NanoparticlesLipopolysaccharidesNADPH DehydrogenaseEnzyme InductionPeroxynitrous AcidIndazoles4-Hydroxyaminoquinoline-1-oxideSuperoxidesOxadiazolesExhalationMacrophagesAcetylcholineBlood PressureFree Radical ScavengersBreath TestsGuanidines