2025
Dual-emission spiropyran-functionalized covalent organic framework–based nanofiber mat microsensors for fluorescence colorimetric sensing of trace water
Zhang H, Wang L, Li J, Xu Q. Dual-emission spiropyran-functionalized covalent organic framework–based nanofiber mat microsensors for fluorescence colorimetric sensing of trace water. Sensors And Actuators B Chemical 2025, 423: 136734. DOI: 10.1016/j.snb.2024.136734.Peer-Reviewed Original ResearchIntramolecular charge transfer propertiesFace-to-face stackingCovalent organic frameworksSolvent-solvent interactionsCharge transfer propertiesLow matrix interferenceRatiometric fluorescent probeH‐aggregate formSolvatochromic behaviorPresence of waterPolar solventsOrganic frameworksTrace waterAcyl chlorinationExcited statesMatrix interferencesDetection of waterFluorescent probeSolid samplesTransfer propertiesNanofiber matsSolventChlorineMicrosensing devicesNanofibers
2024
Double-Fluorescent Response Spiropyran-Functionalized Graphitic Carbon Nitride Solvent Decoder and Nanofiber Mat-Based Visual Colorimetric Sensor for Humidity Detection within Grain Heaps
Zhang H, Wang L, Nian Q, Liu S, Li J, Xu Q. Double-Fluorescent Response Spiropyran-Functionalized Graphitic Carbon Nitride Solvent Decoder and Nanofiber Mat-Based Visual Colorimetric Sensor for Humidity Detection within Grain Heaps. Analytical Chemistry 2024, 96: 15257-15264. PMID: 39253869, DOI: 10.1021/acs.analchem.4c02523.Peer-Reviewed Original ResearchStructures of spiropyransGraphitic carbon nitrideFluorescence quantum yieldRatiometric fluorescence sensingVisual colorimetric sensorSolvatochromic behaviorCarbon nitridePolar solventsFluorescence sensingMolecular structureQuantum yieldOrganic solventsColorimetric sensorFluorescence emissionVisual colorimetric methodAcidic conditionsSolvent identificationEmission wavelengthSpiropyranSample spotsSolventStainless steel needleHumidity detectionHydrophilic PVPGrain heap