Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 251, Issue -, Pages 410-415Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2017.05.097
Keywords
Pyrido[1,2-a]benzimidazole; FRET; Bioimaging; Fluorescent probe; Hg2+
Funding
- Natural Science Foundation of China [21602153]
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A novel pyrido[1,2-a]benzimidazole-rhodamine ratiometric fluorescent probe TMUHg-3 for Hg2+ based on a fluorescence resonance energy transfer mechanism has been developed. In this system, the energy transfer efficiency is 87.3%. The probe can detect Hg2+ with a very low detection limit of 18.8 nM, and very high selectivity toward Hg2+. Furthermore, it can be used for imaging Hg2+ in living cells. (C) 2017 Elsevier B.V. All rights reserved.
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