| Popis: |
Polarity-sensitive dansyl derivatives L1 and L2 were synthesized, and their ability to sense pollutant metal ions was investigated. All compounds were highly sensitive towards Cu2+ and Hg2+ metal ions, while L2 could detect and quantify Hg2+ concentrations as low as 2.5 µM. Both L1 and L2 exhibit positive solvatofluorochromic behaviour, modulated in the presence of water, which in turn results in fluorescence enhancement via aggregation-induced emission (AIE). Seeking stability and water solubility, luminescent L1-based polystyrene-block-polybutadiene-block-polystyrene (SBS) microparticles (size: 520 ± 76 nm) were successfully prepared while maintaining the fluorescence emission of fluorophore L1 (22%). This work shows the dansyl-derivative's multiple properties and promising applications in biomedicine and environmental fields. |
