2022
Glutathione reactivity with aliphatic polyisocyanates
Wisnewski AV, Liu J. Glutathione reactivity with aliphatic polyisocyanates. PLOS ONE 2022, 17: e0271471. PMID: 35839242, PMCID: PMC9286259, DOI: 10.1371/journal.pone.0271471.Peer-Reviewed Original ResearchConceptsHexamethylene diisocyanateAliphatic polyisocyanatesReaction productsMS/MSTandem MS/MSReversed-phase LC-MSPositive ion modeMajor reaction productsLiquid chromatography-coupled mass spectrometryCoupled-mass spectrometryPolymeric formulationsIon modeGlutathione reactivityFragmentation patternsGSH reactivityS linkageO groupLC-MSPolyisocyanatesIonsIsocyanate productsDiisocyanateImportant productsReactivityMS
2017
Polymerization of hexamethylene diisocyanate in solution and a 260.23 m/z [M+H]+ ion in exposed human cells
Wisnewski AV, Liu J, Redlich CA, Nassar AF. Polymerization of hexamethylene diisocyanate in solution and a 260.23 m/z [M+H]+ ion in exposed human cells. Analytical Biochemistry 2017, 543: 21-29. PMID: 29175138, PMCID: PMC5826792, DOI: 10.1016/j.ab.2017.11.017.Peer-Reviewed Original ResearchConceptsHexamethylene diisocyanateCollision-induced dissociation (CID) fragmentation patternsNucleophilic additionImportant industrial chemicalPrimary aminesFragmentation patternsO groupLC-MS/MSLC-MS/MS analysisLC-MSReaction productsIonsMS analysisFormula CIndustrial chemicalsDiisocyanatePolymerizationPolymersReaction targetWaterSolutionAminesDefinitive characterizationMoleculesDimers
2001
Development of immunoassays for biomonitoring of hexamethylene diisocyanate exposure.
Lemus R, Lukinskeine L, Bier ME, Wisnewski AV, Redlich CA, Karol MH. Development of immunoassays for biomonitoring of hexamethylene diisocyanate exposure. Environmental Health Perspectives 2001, 109: 1103-1108. PMID: 11712993, PMCID: PMC1240469, DOI: 10.1289/ehp.011091103.Peer-Reviewed Original ResearchConceptsHexamethylene diisocyanateHuman serum albuminLaser desorption timeMatrix-assisted laser desorption timeFlight mass spectrometryWorkplace air monitoringMass spectrometryDesorption timeDiisocyanateAdductsDevelopment of immunoassaysHSA antigenSerum albuminMicrotiter platesReactionAir monitoringHexamethylene diisocyanate exposurePpbAbsence of reactionSensitive bioassayNumerous samplesSpectrometryDiphenylPolyurethaneCoatings