期刊论文

Long, Liping

英文

Methods and Applications in Fluorescence

2050-6120

2017

5

2

025002-

10.1088/2050-6120/aa6d8d

NSFCNational Natural Science Foundation of China (NSFC) [21502048, 21545003]; Natural Science Foundation of Hunan ProvinceNatural Science Foundation of Hunan Province [2016JJ3102, 2015JJ2023]; Outstanding Youth Project of the Education Department of Hunan Province [14B036]; Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province; 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...