1. A highly sensitive quinolimide-functionalized fluorescent sensor for Zn2+ with multifaceted applications.
- Author
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Cao, Hongjie, Zhang, Yu, Qu, Wenjing, Wang, Ruiyu, and Jia, Lihua
- Subjects
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LOGIC circuits , *DETECTORS , *EMISSION control , *WATER sampling , *STIMULUS & response (Psychology) - Abstract
[Display omitted] A new quinolimide derivative MSH was designed and developed as a highly sensitive Zn2+ fluorescent turn-on sensor in neutral aqueous media. After binding Zn2+ with a 2:1 stoichiometry, the excellent fluorescence enhancement (Φ Zn(II) = 0.555) of MSH was observed, along with the low LOD of 8 nM, wide pH usage range (pH = 4–12), and fast response time of less than 15 s. The combinational logic gate and the memory device were constructed to take advantage of the emission of MSH controlled by Zn2+ and EDTA. Additionally, Zn2+ in actual water samples was detected with the satisfactory recovery rates between 96.6 % and 104 %. And MSH was successfully fabricated into paper strips and used as an imaging tool in yeast cells for tracking Zn2+ levels. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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