Search results for "Sodium Cyanide"

showing 2 items of 2 documents

Selective and Sensitive Chromogenic Detection of Cyanide and HCN in Solution and in Gas Phase

2013

Two triphenylmethane based chemodosimeters for selective and chromogenic sensing of cyanide anions in aqueous environments and of hydrogen cyanide in gas phase were prepared and studied.

Sensor mediaPhotochemistryCyanideInorganic chemistryHydrogen cyanideCatalysisGas phasechemistry.chemical_compoundQUIMICA ORGANICAHydrogen CyanideSodium CyanideMaterials ChemistryAqueous solutionsSodium cyanideSpiropyran conjugateAqueous solutionTriphenylmethaneCyanidesChemodosimeterChromogenicQUIMICA INORGANICAMetals and AlloysGeneral ChemistryAnion recognitionSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsSolutionsPhotophysicschemistryCeramics and CompositesColorimetryGases
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Mechanism of Reaction of Melatonin with Human Myeloperoxidase

2001

Recently, it was suggested that melatonin (N-acetyl-5-methoxytryptamine) is oxidized by activated neutrophils in a reaction most probably involving myeloperoxidase (Biochem. Biophys. Res. Commun. (2000) 279, 657-662). Myeloperoxidase (MPO) is the most abundant protein of neutrophils and is involved in killing invading pathogens. To clarify if melatonin is a substrate of MPO, we investigated the oxidation of melatonin by its redox intermediates compounds I and II using transient-state spectral and kinetic measurements at 25 degrees C. Spectral and kinetic analysis revealed that both compound I and compound II oxidize melatonin via one-electron processes. The second-order rate constant measur…

NeutrophilsStereochemistryBiophysicsElectron donorIn Vitro TechniquesBiochemistryRedoxMedicinal chemistrySubstrate SpecificityElectron TransportSuperoxide dismutaseMelatoninchemistry.chemical_compoundReaction rate constantChloridesmedicineHumansMolecular BiologySodium cyanideMelatoninPeroxidasebiologyCyclohexanonesChemistryCell BiologyHydrogen-Ion ConcentrationKineticsSpectrophotometryMyeloperoxidasebiology.proteinFerricOxidation-Reductionmedicine.drugBiochemical and Biophysical Research Communications
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