Design strategies for ratiometric chemosensors: modulation of excitation energy transfer at the energy donor site

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dc.citation.epage9013en_US
dc.citation.issueNumber25en_US
dc.citation.spage9007en_US
dc.citation.volumeNumber131en_US
dc.contributor.authorGuliyev, R.en_US
dc.contributor.authorCoskun, A.en_US
dc.contributor.authorAkkaya, E. U.en_US
dc.date.accessioned2016-02-08T10:03:40Z
dc.date.available2016-02-08T10:03:40Z
dc.date.issued2009en_US
dc.departmentDepartment of Chemistryen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractExcitation energy transfer, when coupled to an ion-modulated ICT chromophore, creates novel opportunities in sensing. The direction of energy transfer and the point of ICT modulation can be varied as desired. In our previous work, we have shown that energy transfer efficiency between two energetically coupled fluorophores will be altered by the metal ion binding to the ICT chromophore carrying a ligand. There are two beneficial results: increased pseudo-Stokes shift and expanded dynamic range. Here, we explored the consequences of the modulation of energy transfer efficiency at the energy donor site, in a molecular design which has an ICT type metal ion-sensitive chromophore placed as the energy donor in the dyad. Clear advantages emerge compared to the acceptor site modulation: unaltered emission wavelength in the red end of the visible spectrum, while keeping a large Stokes shift and the ratiometric character. © 2009 American Chemical Society.en_US
dc.identifier.doi10.1021/ja902584aen_US
dc.identifier.issn0002-7863
dc.identifier.urihttp://hdl.handle.net/11693/22705
dc.language.isoEnglishen_US
dc.relation.isversionofhttp://dx.doi.org/10.1021/ja902584aen_US
dc.source.titleJournal of the American Chemical Societyen_US
dc.subjectAcceptor sitesen_US
dc.subjectChemo-sensorsen_US
dc.subjectDesign strategiesen_US
dc.subjectEmission wavelengthen_US
dc.subjectEnergy donorsen_US
dc.subjectEnergy transfer efficiencyen_US
dc.subjectExpanded dynamic rangeen_US
dc.subjectMetal ion bindingen_US
dc.subjectMolecular designen_US
dc.subjectRatiometricen_US
dc.subjectStokes shiften_US
dc.subjectVisible spectraen_US
dc.subjectEmission spectroscopyen_US
dc.subjectEnergy transferen_US
dc.subjectExcitation energyen_US
dc.subjectMetal ionsen_US
dc.subjectModulationen_US
dc.subjectChromophoresen_US
dc.subjectChemical bindingen_US
dc.subjectChemical structureen_US
dc.subjectChromatophoreen_US
dc.subjectModulation transfer functionen_US
dc.subjectSensoren_US
dc.subjectSynthesisen_US
dc.subjectBinding sitesen_US
dc.subjectFluorescent dyesen_US
dc.subjectIonsen_US
dc.subjectLigandsen_US
dc.subjectMetalsen_US
dc.subjectSpectrometry, fluorescenceen_US
dc.subjectSpectrophotometryen_US
dc.titleDesign strategies for ratiometric chemosensors: modulation of excitation energy transfer at the energy donor siteen_US
dc.typeArticleen_US

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Department of Chemistry
Institute of Materials Science and Nanotechnology (UNAM)