焦磷酸盐
荧光
喹啉
化学
三磷酸腺苷
继电器
腺苷
光化学
组合化学
生物化学
酶
物理
量子力学
功率(物理)
有机化学
作者
Huanhuan Song,Zhen Zhang
标识
DOI:10.1016/j.dyepig.2019.02.011
摘要
Abstract A new and simple quinoline-based fluorescent probe for discriminative sensing of Zn2+ and Cd2+ has been synthesized by inserting an amide group into the 8-aminoquinoline fluorophore and a propargylamine chelating site. This easily-available chemosensor displayed selective and distinct ratiometric fluorescence responses to Zn2+ in almost totally water solution through its amide tautomer binding form, and to Cd2+ in CH3CN aqueous medium through its imidic acid tautomer binding form, respectively. Moreover, the in situ prepared probe 1–Zn2+ complex could act as a relay fluorescent sensor selectively toward pyrophosphate (PPi) and adenosine 5′-triphosphate (ATP) anions via further complexation. Thus, with good specificity, low detection limits and fast response time, a highly efficient fluorescence platform for simultaneous multi-analyte detection has been developed by using the uncomplicated single molecule. Finally, this multi-functional probe was applied successfully for analysis of all the target ions in the tap water sample and on test paper strips, and bioimaging of Zn2+ in mung bean sprouts with low phytotoxicity.
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