Small, Год журнала: 2025, Номер unknown
Опубликована: Май 8, 2025
Abstract Methanol, an alcohol solvent with significant roles in biology, industry, and the environment, can exert negative impacts on organisms environment when it is present excess. Therefore, developing efficient easy‐to‐operate methanol detection methods essential for providing timely information its concentration. In this work, four novel small molecule probes (DBZ‐H, DBZ‐Me, DBZ‐Bu, DBZ‐OMe) a D‐A‐A‐D structure are developed distinct fluorescence emission large Stokes shifts different organic solvents because of their conjugated push–pull system. Furthermore, nitrogen atom benzothiazole as anchor point, all dyes quantitatively detect through intensity wavelength modes. This specific ability to distinguish from other alcohols attributed strong hydrogen‐bonding interaction between methanol, well molecular size methanol. The limits 0.054%, 0.048%, 0.047%, 0.044% DBZ‐H, DBZ‐OMe, respectively. sensing mechanism confirmed spectroscopy theoretical calculations. Additionally, these applied biodiesel. Finally, dual‐mode convenient achieved assistance smartphone.
Язык: Английский