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基于分子内电荷转移的多枝状荧光探针光学性质与响应机理分析（英文）.docx

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基于分子内电荷转移的多枝状荧光探针光学性质与响应机理分析（英文） Title:AnalysisofOpticalPropertiesandResponseMechanismofMulti-branchFluorescentProbesbasedonIntramolecularChargeTransfer Abstract: Multi-branchfluorescentprobeshavegarneredsignificantattentionasversatiletoolsforbiologicalimagingandsensingduetotheiruniqueopticalpropertiesanddiverseapplications.Thispaperaimstoanalyzetheopticalpropertiesandresponsemechanismofmulti-branchfluorescentprobesbasedonintramolecularchargetransfer.Thepaperbeginsbyprovidinganintroductiontothefundamentalprinciplesofintramolecularchargetransferanditssignificanceinfluorescenceprobing.Itthendelvesintothedesignprinciplesandsynthesisstrategiesofmulti-branchfluorescentprobes.Theopticalpropertiesincludingabsorptionspectra,fluorescencespectra,quantumyields,andlifetimesarediscussedindetail,highlightingtheinfluenceofthemolecularstructure,substituents,andenvironmentalfactors.Furthermore,theresponsemechanismofmulti-branchfluorescentprobestowardsspecificanalytesorstimuliisanalyzed,emphasizingtheroleofintramolecularchargetransferinthesensingprocess.Theanalyticaltechniques,suchasspectroscopyandmicroscopy,usedtoinvestigatetheprobes'opticalpropertiesandresponsemechanismarealsoelaboratedupon.Finally,thepaperconcludeswithasummaryofthecurrentchallengesandfutureprospectsinthefieldofmulti-branchfluorescentprobesforopticalsensingandimaging. 1.Introduction 1.1Intramolecularchargetransfer 1.2Significanceinfluorescenceprobing 2.DesignandSynthesisofMulti-branchFluorescentProbes 2.1Designprinciples 2.2Synthesisstrategies 3.OpticalPropertiesofMulti-branchFluorescentProbes 3.1Absorptionspectra 3.2Fluorescencespectra 3.3Quantumyields 3.4Lifetimes 3.5Influenceofmolecularstructure,substituents,andenvironmentalfactors 4.ResponseMechanismofMulti-branchFluorescentProbes 4.1Intramolecularchargetransferinsensing 4.2Analyteorstimulus-inducedresponse 4.3Roleofintramolecularchargetransferinthesensingprocess 5.AnalyticalTechniquesforProbingOpticalPropertiesandResponseMechanism 5.1Spectroscopictechniques 5.