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Indexed by:期刊论文

Date of Publication:2018-04-15

Journal:SENSORS AND ACTUATORS B-CHEMICAL

Included Journals:SCIE、EI

Volume:259

Page Number:233-240

ISSN No.:0925-4005

Key Words:Thiol probe; "Turn-on" fluorescence; Large stokes shift; Cell imaging; Zebrafish imaging

Abstract:Carbazole-based fluorescent probes have a significant edge on structure and optical properties, but stokes shift of them were mostly less than 100nm. In this work, a novel carbazole-based fluorescent probe, which featured with a large stokes shift (128nm), was used to effectively detect homocysteine (Hcy) and cysteine (Cys). This probe revealed obvious color variation and a turn-on alteration of fluoresence toward Hcy and Cys. Furthermore, the probe works under physiological conditions and can image thiol in living cells as well as zebrafish because of its wonderful cell permeability. Notably, it provides a possibility to detect endogenous bio-thiols quantitatively in living cells. (c) 2017 Elsevier B.V. All rights reserved.