A novel photochromic diarylethene with a quinoline unit was synthesized with multi-controllable fluorescence switching properties, which could be induced by light, mercury (Hg2+) and cysteine (Cys). Because the diarylethene displayed obvious fluorescence quenching with Hg2+ and the fluorescence was recovered to its original state evidently with Cys, it could sequentially recognize Hg2+ and Cys. Additionally, a logic circuit was constructed with the fluorescence intensity at 468 nm as output, and the combined stimuli of light and chemicals as inputs.
CITATION STYLE
Li, G., Ma, L., Liu, G., Fan, C., & Pu, S. (2017). A diarylethene-based “on-off-on” fluorescence sensor for the sequential recognition of mercury and cysteine. RSC Advances, 7(33), 20591–20596. https://doi.org/10.1039/c6ra27773j
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