共 50 条
A mitochondria-targetable fluorescent probe for detection of bisulfite in living cells
被引:8
|作者:
Guo, Xiao
[1
]
Zhu, Wei-Jin
[1
]
Wei, Xue-Rui
[2
]
Xu, Yu-Jie
[2
]
Sun, Ru
[1
]
Ge, Jian-Feng
[1
,3
]
机构:
[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, 199 RenAi Rd, Suzhou 215123, Peoples R China
[2] Soochow Univ, Jiangsu Higher Educ Inst, Collaborat Innovat Ctr Radiat Med, State Key Lab Radiat Med & Protect,Sch Radiat Med, Suzhou 215123, Peoples R China
[3] Chinese Acad Sci, Suzhou Inst Biomed Engn & Technol, Jiangsu Key Lab Med Opt, Suzhou 215163, Peoples R China
基金:
中国国家自然科学基金;
关键词:
SO2;
DERIVATIVES;
SELECTIVE DETECTION;
RATIOMETRIC DETECTION;
SULFUR-DIOXIDE;
SULFITE;
PLATFORM;
SENSORS;
SAMPLES;
ANIONS;
ESIPT;
D O I:
10.1039/c8ay01543k
中图分类号:
O65 [分析化学];
学科分类号:
070302 ;
081704 ;
摘要:
A new colorimetric semi-cyanine fluorescent probe (3) based on benzo[g]indolium was designed and prepared. Probe 3 exhibited a clear OFF-ON fluorescence response at 460 nm toward HSO3- (0-8.0 eq.) within a short response time (3 min). In addition, probe 3 had good selectivity and competitiveness, with excellent sensitivity and a low detection limit (4.4 nM). The detection mechanism relied on nucleophilic HSO3- attacking the C?C double bond in a 1,4-nucleophilic addition reaction. Importantly, the confocal fluorescence results indicated that probe 3 targeted mitochondria and could detect HSO3- in living cells.
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页码:3872 / 3877
页数:6
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