A new coumarin-based fluorescent probe for selective recognition of Cu2+ and S2- in aqueous solution and living cells

被引：26

作者：

Liu, Zhen ^{[1
]}

Liu, Linjing ^{[2
]}

Li, Jiulong ^{[1
]}

Qin, Yuanyuan ^{[1
]}

Zhao, Chenyang ^{[1
]}

Mi, Yang ^{[3
]}

Li, Guoping ^{[1
]}

Li, Tiesheng ^{[1
]}

Wu, Yangjie ^{[1
]}

机构：

[1] Zhengzhou Univ, Coll Chem & Mol Engn, Zhengzhou 950001, Henan, Peoples R China

[2] Chongqing Inst Engn, Chongqing 401320, Peoples R China

[3] Zhengzhou Univ, Sch Basic Med Sci, Zhengzhou 450001, Henan, Peoples R China

来源：

TETRAHEDRON | 2019年 / 75卷 / 30期

关键词：

Fluorescent probe; Copper ion; Sulfide; Reversible; Bioimaging; LARGE STOKES SHIFT; NUCLEOPHILIC SUBSTITUTION-CYCLIZATION; HYDROGEN-SULFIDE DETECTION; SEQUENTIAL DETECTION; DETECTING COPPER; WILSON DISEASE; H2S DETECTION; CHEMOSENSOR; SENSOR; BIOTHIOLS;

D O I：

10.1016/j.tet.2019.05.057

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A new coumarin-based fluorescent probe CMOH was easily synthesized for detection of Cu2+ and S2- in aqueous media and living cells. CMOH displayed high sensitivity (detection limit = 3.2 nM) and selectivity to Cu2+ with a non-fluorescence complex CMOH-Cu2+ formation via a 1:1 binding mode. According to displacement approach, the fluorescence of CMOH-Cu2+ was recovered in the presence of S2- and acted as a sensitive sensor with a low detection limit of 11.4 nM. This "on-off-on" process can be accomplished within 1 min and repeated at least 5 times. What's more, CMOH exhibited good permeability, low cytotoxicity and can be used as a suitable tool to detect changes of Cu2+ and S2- in biosystem. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：3951 / 3957

页数：7

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