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A dual-site controlled fluorescent sensor for the facile and fast detection of H<sub>2</sub>O in D<sub>2</sub>O by two turn-on emission signals
36
Citations
15
References
2019
Year
Currently, fluorescent sensors for the detection of H<sub>2</sub>O in D<sub>2</sub>O are still quite rare. Herein, we present a dual-site controlled fluorescent sensor (CF-D<sub>2</sub>O) for the detection of H<sub>2</sub>O in D<sub>2</sub>O. As the H<sub>2</sub>O content in D<sub>2</sub>O decreases (namely, the purity of D<sub>2</sub>O increases), sensor CF-D<sub>2</sub>O provides two turn-on fluorescence signals. The response mechanism of sensor CF-D<sub>2</sub>O to H<sub>2</sub>O is based on the deprotonation of the two hydroxyl groups, as well as the FRET process between coumarin and xanthene units.
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