A highly sensitive and selective fluorescent probe for fluoride anions based on intramolecular charge transfer

作者：Liu, Jingkai; Xu, Zhenghe^*; Liu, Caiyun; Xu, Lirong; Wang, Zhongpeng; Zhu, Baocun^*

来源：Luminescence, 2016, 31(5): 1166-1170.

DOI：10.1002/bio.3044

• fluoride anion
• intramolecular charge transfer
• turn-on fluorescence
• Si-O bond

Currently, there is a great need to develop methods for the selective detection of fluoride anions (F-) owing to their toxicity in the environment and biological function in living systems. In this study, we developed a new fluorescent probe (probe 1) employing a Si-O bond as a highly selective recognition receptor for detecting F- via intramolecular charge transfer. Probe 1 could detect F- quantitatively using the turn-on fluorescence spectroscopy method with excellent sensitivity in the range of 4-38 M and a detection limit of 0.26 M; the detection time was < 17 min. We anticipate that probe 1 would be used widely to monitor F- in the environment.

• 出版日期2016-8
• 单位济南大学