期刊
BIOSENSORS & BIOELECTRONICS
卷 61, 期 -, 页码 612-617出版社
ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/j.bios.2014.06.017
关键词
Fluorescent turn-on sensor; Benzo-thiazolo-pyrimidine; Fe3+; ICT; PET; Live cells imaging
类别
资金
- Department of Science & Technology, New Delhi, India [CS-088/2013]
An electronically active and spectral sensitive fluorescent turn-on chemosensor (BTP-1) based on the benzo-thiazolo-pyrimidine unit was designed and synthesized for the highly selective and sensitive detection of Fe3+ from aqueous medium. With Fe3+, the sensor BTP-1 showed a remarkable fluorescence enhancement at 554 nm (lambda(ex) = 314 nm) due to the inhibition of photo-induced electron transfer. The sensor formed a host-guest complex in 1:1 stoichiometry with the detection limit down to 0.74 nM. Further, the sensor was successfully utilized for the qualitative and quantitative intracellular detection of Fe3+ in two liver cell lines i.e., HepG2 cells (human hepatocellular liver carcinoma cell line) and HL-7701 cells (human normal liver cell line) by a confocal imaging technique. (C) 2014 Elsevier B.V. All rights reserved.
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