A highly selective ratiometric fluorescent probe for biothiol and imaging in live cells

被引：21

作者：

Gao, Baozhen ^{[1
]}

Cui, Lixia ^{[1
]}

Pan, Yong ^{[2
]}

Zhang, Guomei ^{[1
]}

Zhou, Ying ^{[1
]}

Zhang, Caihong ^{[1
]}

Shuang, Shaomin ^{[1
]}

Dong, Chuan ^{[1
]}

机构：

[1] Shanxi Univ, Dept Chem & Chem Engn, Taiyuan 030006, Peoples R China

[2] Res Inst Chem Def, State Key Lab NBC Protect Civilian, Beijing 102205, Peoples R China

来源：

RSC ADVANCES | 2016年 / 6卷 / 49期

关键词：

HYDROGEN-SULFIDE; APPENDED NAPHTHALIMIDE; GLUTATHIONE; THIOL; HOMOCYSTEINE; EMISSION; CYSTEINE; DELIVERY;

D O I：

10.1039/c6ra04564b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new N-butyl-4-amino-1,8-naphthalimide-based colorimetric and ratiometric fluorescent probe for the detection of biothiols (cysteine, homocysteine, and glutathione) was designed and synthesized. The probe exhibited good selectivity and sensitivity toward biothiols over other non-thiol-bearing amino acids and common anions with significant changes in both color (from colorless to yellow) and fluorescence (from blue to yellow-green). The mechanism is based on cleavage of disulfide by thiols followed by an intramolecular cyclization to give the product, N-butyl-4-amino-1,8-naphthalimide, which showed outstanding intramolecular charge transfer (ICT). Therefore, ratiometric fluorescence signal was observed. Furthermore, the probes were successfully applied for visualizing endogenous thiols in living cells.

引用

页码：43028 / 43033

页数：6

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