期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 254, 期 -, 页码 842-854出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2017.07.115
关键词
Fe3+-anthracene ensemble; Putrescine; Cadaverine; Logic gate; Primitive-Eukaryotic cell lines
资金
- Basic Science Research Program through the National Research Foundation (NRF) - Republic of Korea [2016R1D1A1B03931989]
A 9,10-bis(morpholinopropylaminomethyl)anthracene (1)-Fe(3+)chelate was designed, synthesized, and characterized by FT-IR, H-1-H-1 COSY and H-1-H-1 POESY NMR studies. The in situ-generated Fe3+ ensemble selectively detected putrescine (Put) and cadaverine (Cad) through a turn-off response via a decomplexation process in DMSO-H2O (1:1 v/v) at pH 7.3 (HEPES buffer). Furthermore, the in situ-generated ensemble can effectively differentiate biogenic aliphatic di- and triamines from a broad range of aliphatic monoamines (including basic amino acids) and aromatic amines (including polyamines). The lowest limit of detection (LOD) for Put and Cad were 33 ppb and 120 ppb, respectively, in mixed aqueous medium. The decomplexation aided turn-offresponse by the sequential addition of Put and Cad furnished good association constants [K-sv = 2.30 x 10(6)M(-1), and 9.95 x 10(5)M(-1) in a HEPES-buffered DMSO-H2O (1:1, v/v) medium, respectively]. Furthermore, highly robust vapor phase detections of Put and Cad were also demonstrated using the fluorescent 1.Fe3+ (1:2) ensemble coated on neutral alumina. Cheap ensemble-coated paper strips selectively detected Cad and Put among a variety of biogenic amines. By utilizing complexation/decomplexation processes aided through sequential addition of Fe3+ and Put/Cad an INHIBIT photonic logic gate and its fluorogenic tracking was demonstrated in primitive-eukaryotic cell lines. (C) 2017 Elsevier B.V. All rights reserved.
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