2023
Two-Dimensional Electronic Spectroscopy of the Far-Red-Light Photosystem II Reaction Center
Silori Y, Willow R, Nguyen H, Shen G, Song Y, Gisriel C, Brudvig G, Bryant D, Ogilvie J. Two-Dimensional Electronic Spectroscopy of the Far-Red-Light Photosystem II Reaction Center. The Journal Of Physical Chemistry Letters 2023, 14: 10300-10308. PMID: 37943008, DOI: 10.1021/acs.jpclett.3c02604.Peer-Reviewed Original ResearchTwo-dimensional electronic spectroscopyCharge separation mechanismPhotosystem II reaction centerElectronic spectroscopyPrimary charge separationReaction centersSpectral congestionPrimary energy conversionCharge separationVisible lightFar-red lightRadical pairSpectral overlapPrimary electron acceptorConstituent pigmentsFAR-REDSpectroscopyLightEnergy conversionSeparation mechanismElectron acceptor
2021
Tuning the Conduction Band for Interfacial Electron Transfer: Dye-Sensitized Sn x Ti1–x O2 Photoanodes for Water Splitting
Spies J, Swierk J, Kelly H, Capobianco M, Regan K, Batista V, Brudvig G, Schmuttenmaer C. Tuning the Conduction Band for Interfacial Electron Transfer: Dye-Sensitized Sn x Ti1–x O2 Photoanodes for Water Splitting. ACS Applied Energy Materials 2021, 4: 4695-4703. DOI: 10.1021/acsaem.1c00305.Peer-Reviewed Original ResearchDFT calculationsAbsorption spectroscopyInterfacial electron transfer dynamicsUltrafast transient absorption spectroscopyInterfacial electron transferElectron transfer dynamicsUltrafast electron injectionConduction bandPeriodic DFT calculationsTransient absorption spectroscopyLinear absorption spectroscopyDye sensitizersWater splittingElectron transferTransfer dynamicsComposition of SnElectron acceptorAbsorption spectraElectron injectionD characterElectronic statesSpectroscopyPhotoanodeSnDye
2017
Linker Length-Dependent Electron-Injection Dynamics of Trimesitylporphyrins on SnO2 Films
Lee S, Regan K, Hedström S, Matula A, Chaudhuri S, Crabtree R, Batista V, Schmuttenmaer C, Brudvig G. Linker Length-Dependent Electron-Injection Dynamics of Trimesitylporphyrins on SnO2 Films. The Journal Of Physical Chemistry C 2017, 121: 22690-22699. DOI: 10.1021/acs.jpcc.7b07855.Peer-Reviewed Original ResearchDye-sensitized photoelectrochemical cellsElectron injection dynamicsPhotoelectrochemical cellsLinker lengthMetal oxide filmsMolecular photosensitizersPorphyrin coreAnchor groupsElectron acceptorInjection dynamicsLinkerSnO2 filmsOxide filmsFilmsTerphenyleneSystematic studyPhenylenePorphyrinsBiphenyleneSpectroscopyComputational modelingAcceptorPhotosensitizerSynthesisOxideAlternative Electron Acceptors for Photosystem II
Wiwczar J, Brudvig G. Alternative Electron Acceptors for Photosystem II. 2017, 51-66. DOI: 10.1007/978-3-319-48873-8_4.Peer-Reviewed Original ResearchElectron acceptorPhotosystem IIPhotochemical water oxidationElectron acceptor moleculesCobalt coordination complexesElectron acceptor sideElectron transfer pathwayRedox midpoint potentialAlternative electron transfer pathwaysCoordination complexesWater oxidationElectron transferMolecular oxygenMidpoint potentialCation exchangeExogenous electron acceptorsOxygenic photosynthetic organismsAcceptor sidePhotosynthetic electron transport chainAcceptorEnergy applicationsAlternative electron acceptorsThylakoid membranesCytochrome c.Photosynthetic organisms
2000
Low-Temperature Turnover Control of Photosystem II Using Novel Metal-Containing Redox-Active Herbicides
Karki L, Lakshmi K, Szalai V, Brudvig G. Low-Temperature Turnover Control of Photosystem II Using Novel Metal-Containing Redox-Active Herbicides. Journal Of The American Chemical Society 2000, 122: 5180-5188. DOI: 10.1021/ja994138x.Peer-Reviewed Original ResearchO2-evolving complexQB siteLong-range electron transferElectron acceptor groupsS-state cyclingStable charge separationPentane spacerHydrocarbon spacerUrea groupsElectron transferCharge separationEPR resultsStoichiometric reductionTwo-electronHerbicide derivativesEPR studiesElectron acceptorMoietyPhenylurea herbicidesDonor sidePhotosystem IISpacerComplexesLow temperatureInhibition studies
1996
Characterization of the Reductase Domain of Rat Neuronal Nitric Oxide Synthase Generated in the Methylotrophic Yeast Pichia pastoris CALMODULIN RESPONSE IS COMPLETE WITHIN THE REDUCTASE DOMAIN ITSELF*
Gachhui R, Presta A, Bentley D, Abu-Soud H, McArthur R, Brudvig G, Ghosh D, Stuehr D. Characterization of the Reductase Domain of Rat Neuronal Nitric Oxide Synthase Generated in the Methylotrophic Yeast Pichia pastoris CALMODULIN RESPONSE IS COMPLETE WITHIN THE REDUCTASE DOMAIN ITSELF*. Journal Of Biological Chemistry 1996, 271: 20594-20602. PMID: 8702805, DOI: 10.1074/jbc.271.34.20594.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBase SequenceCalmodulinCalmodulin-Binding ProteinsDNA PrimersElectron Spin Resonance SpectroscopyFlavinsFlavoproteinsIsoenzymesMolecular Sequence DataNADH DehydrogenaseNeuronsNitric Oxide SynthaseOxidation-ReductionPichiaRatsRecombinant ProteinsSpectrometry, FluorescenceTryptophanConceptsElectron transferFlavin semiquinoneReductase domainNADPH-dependent flavin reductionArtificial electron acceptorsADP affinity chromatographyHeme-containing oxygenase domainCalmodulin responseNNOS reductase domainAnaerobic titrationFlavin reductionElectron acceptorNNOS reductaseFlavin-containing reductase domainReductase proteinSemiquinoneFlavinFlavin fluorescenceOxygenase domainAffinity chromatographyCytochrome c.Pure proteinCytochrome cTransferAcceptor
1992
Photooxidation of cytochrome b559 in oxygen-evolving photosystem II.
Buser C, Diner B, Brudvig G. Photooxidation of cytochrome b559 in oxygen-evolving photosystem II. Biochemistry 1992, 31: 11449-59. PMID: 1445880, DOI: 10.1021/bi00161a025.Peer-Reviewed Original ResearchConceptsCyt b559Photosystem II protein complexDark reductionOptical spectroscopyElectron transfer kineticsOxygen-evolving photosystem IIPSII-enriched membranesCytochrome b559Redox stateS2QA- charge recombinationExtent of photooxidationRate of photooxidationPrimary electron acceptorPH range 5.0Plastoquinone poolPSII samplesAcidic pH valuesRoom temperatureElectron acceptorPhotosystem IIPhotooxidationRate of reductionRedox equilibriumRange 5.0P680