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  • Title: A highly selective multi-responsive fluorescence sensor for Zn2+ based on a diarylethene with a 4,6-dimethylpyrimidine unit.
    Author: Wu X, Zhang Z, Liu H, Pu S.
    Journal: RSC Adv; 2020 Apr 16; 10(26):15547-15553. PubMed ID: 35495480.
    Abstract:
    A novel turn-on mode fluorescent diarylethene containing a 4,6-dimethylpyrimidine unit was developed to fluorescently sense Zn2+. Its multiple-responsive properties induced by Zn2+/EDTA and ultraviolet/visible light have been systematically studied. The fluorescence sensor could efficiently detect Zn2+ with a 10 times enhancement of emission intensity and fluorescence color change (dark-green). In addition, the sensor showed clear discrimination from Cd2+. The limit of detection of the sensor was measured to be 8.48 × 10-8 mol L-1 for Zn2+. Finally, a molecular logic circuit was fabricated with the emission at 528 nm as the output signal and light and chemical stimuli as input signals.
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