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An aqueous methylated chromenoquinoline-based fluorescent probe for instantaneous sensing of thiophenol with a red emission and a large Stokes shift
被引:44
作者:
Geng, Yani
[1
]
Tian, Huihui
[1
]
Yang, Liu
[1
]
Liu, Xingjiang
[1
,2
]
Song, Xiangzhi
[1
]
机构:
[1] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China
[2] Zhengzhou Univ, Coll Chem & Mol Engn, Zhengzhou 450001, Henan, Peoples R China
来源:
SENSORS AND ACTUATORS B-CHEMICAL
|
2018年
/
273卷
基金:
中国国家自然科学基金;
关键词:
Fluorescent probe;
Methylated Chromenoquinoline;
Thiophenol;
Red emission;
Large Stokes shift;
LIVING CELLS;
AROMATIC DISULFIDES;
SENSITIVE DETECTION;
LUMINESCENT PROBES;
HYDROGEN-PEROXIDE;
IN-VIVO;
BENZENETHIOLS;
TOXICITY;
THIOLS;
SAMPLES;
D O I:
10.1016/j.snb.2018.07.088
中图分类号:
O65 [分析化学];
学科分类号:
070302 ;
081704 ;
摘要:
A sensitive and selective fluorescent probe, MCQ-O-DNB, for the detection of thiophenol in aqueous media has been developed based on a methylated chromenoquinoline chromophore. This probe can instantaneously respond to thiophenol and reach to a balance within 2 min. In the detection process, this probe exhibited a large Stokes shift (108 nm) and a low detection limit (8.1 nM, based on S/N = 3). Importantly, practical application experiments demonstrated that this probe was able to detect thiophenol in real water samples and living cells.
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收藏
页码:1670 / 1675
页数:6
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