Field-deployable supramolecular fluorescent sensing platform for selective dual-mode detection of thiamethoxam in complex environmental matrices

Dual-Mode Colorimetric and Fluorescent Detection of Cu2+ Based on a Two-Component Sensing Platform Integrating an Imine Derivative and Rhodamine B

Copper is an essential trace element involved in key biological and environmental processes; however, its imbalance can lead to severe health and ecological consequences, making its accurate quantification crucial. In this work, a two-component colorimetric and fluorescent sensing platform based on the imine derivati...

Smartphone-assisted dual-mode cyanide ion sensing in environmental and biological matrices using a triphenylamine-quinoline-conjugated chromogenic receptor.

This work presents the efficient recognition of the hazardous chemical cyanide ions (CN- ions) using a newly designed organic molecule-based fluorescent receptor, (E)-4-(4-(diphenylamino)styryl)-1-propylquinolin-1-ium (TAME). CN- ion detection occurs via nucleophilic addition to the styryl group, inducing distinct elec...

Selective and sensitive dual channel sensing of cyanide by bithiophene fluorophore-based D-π-A type chemodosimeters - Spectral and theoretical studies.

Two new chemodosimeters (SA2-Ind and SA2-Thio) were designed and synthesised by coupling Bisthiophene carboxaldehyde fluorophore with the two different electron-withdrawing salt cores. The developed probes exhibited instantaneous, remarkable colour and fluorescence changes selectively with CN- over other anions. The nu...

Cyanide-Triggered Fluorescence Turn-On in an Indole-Based Chemodosimeter

A heterocyclic chalcone-based fluorescent chemosensor for selective Cu(II) detection: mechanistic insights and preliminary bacterial imaging applications.

Chalcones are attractive scaffolds for fluorescent sensing applications in environmental and biological matrices. Herein, a heterocyclic arylchalcone-based fluorescent chemosensor (2-TIO) with pronounced intramolecular charge transfer (ICT) character was synthesized and spectroscopically characterized for selective Cu(...

Single-Atom Catalyst-Based Fluorescence Sensor Array for the Detection of Per- and Polyfluoroalkyl Substances

Per- and polyfluoroalkyl substances (PFASs), as a class of persistent organic pollutants, pose a great risk to the ecological environment and human health. The development of rapid and accurate assays for PFASs detection is therefore critically important, yet remains challenging. In this work, we designed a fluoresce...