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A red-emitting water-soluble fluorescent probe for biothiol detection with a large Stokes shift
被引:46
|作者:
Yang, Lei
[1
]
Xiong, Haiqing
[1
]
Su, Yuanan
[1
]
Tian, Huihui
[1
]
Liu, Xingjiang
[3
]
Song, Xiangzhi
[1
,2
]
机构:
[1] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China
[2] Key Lab Hunan Prov Water Environm & Agr Prod Safe, Changsha 410083, Hunan, Peoples R China
[3] Zhengzhou Univ, Coll Chem & Mol Engn, Zhengzhou 450001, Henan, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Fluorescent probe;
Biothiol;
Water-soluble;
Red-emitting;
Large Stokes shift;
GLUTATHIONE;
THIOLS;
HOMOCYSTEINE;
CYSTEINE;
D O I:
10.1016/j.cclet.2018.12.017
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
In this work, we presented a fluorescent probe (MCQ-DNBS) for selective and sensitive detection of biothiols based on a methylated chromenoquinoline (MCQ) derivative. Probe MCQ-DNBS was constructed by masking the OH group in MCQ with a common sensing unit, 2,4-dinitrobezensulfonate group (DNBS) for biothiols. Due to the photo-induced electron transfer (PET) process between MCQ and DNBS, this probe was weekly fluorescent. Upon the addition of biothiols (Cys, Hcy and GSH), this probe emitted a strong red fluorescence (lambda(em max)= 613 nm) with a large Stokes shift (115 nm). In addition, fluorescence imaging of biothiols in living cells was successfully realized using MCQ-DNBS as a detector. (C) 2018 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
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页码:563 / 565
页数:3
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