期刊论文

Long, Liping

英文

Methods and Applications in Fluorescence

2050-6120

2017

5

2

025002

10.1088/2050-6120/aa6d8d

This work was financially supported by NSFC (21502048, 21545003), the Natural Science Foundation of Hunan Province (2016JJ3102, 2015JJ2023), the Outstanding Youth Project of the Education Department of Hunan Province (14B036), the Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province, and the Hunan Province Science and Technology Plan Projects (2016TP1022).

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A near-infrared fluorescent probe NIR-Hg, for the detection of Hg2+ ion, has been synthesized directly by condensing Changsha dye with 4-Phenyl-3-thiosemicarbazide and the structure has fully characterized by 1HNMR, 13CNMR, and ESI-MS. The probe has been designed on the basis of the reaction that Hg2+ ion promotes thiosemicarbazide to oxazole in aqueous media and had been induced to produce turn-on fluorescence via an irreversible spirolactam ring-opening process. The probe NIR-Hg has exhibited fast response (1 min), high sensitivity with 44-fo...