共 82 条
1,8-Naphthalimide modified [12]aneN3 compounds as selective and sensitive probes for Cu2+ ions and ATP in aqueous solution and living cells
被引:44
作者:
Gao, Yong-Guang
[1
]
Tang, Quan
[1
]
Shi, You-Di
[1
]
Zhang, Ying
[1
]
Lu, Zhong-Lin
[1
]
机构:
[1] Beijing Normal Univ, Coll Chem, Key Lab Radiopharmaceut, Minist Educ, Xinjiekouwai St 19, Beijing 100875, Peoples R China
来源:
关键词:
Naphthalimide;
12]aneN(3);
Cu2+;
ATP;
Phosphates;
DNA CONDENSATION AGENTS;
ON FLUORESCENT SENSOR;
NONVIRAL GENE VECTORS;
BIFUNCTIONAL MOLECULES;
PERYLENE DIIMIDE;
NUCLEOSIDE POLYPHOSPHATES;
PYROPHOSPHATE ANION;
COLORIMETRIC PROBE;
ELECTRON-TRANSFER;
RECENT PROGRESS;
D O I:
10.1016/j.talanta.2016.02.040
中图分类号:
O65 [分析化学];
学科分类号:
070302 ;
081704 ;
摘要:
A new fluorescent probe I featuring one 1,8-naphthalimide and two [12]aneN(3) units was synthesized. In the presence of Cu2+ ions, the fluorescence emission of 1 was quenched by a factor of 127-fold and no interference by other metal ions was observed under physiological conditions. By means of titration and a Job's plot it was established that 1 forms a complex with Cu2+ ions in a 1:2 ratio. The fluorescence of the 1-Cu2+ complex was recovered by the addition of Adenosine-5'-triphosphate (ATP) in aqueous solution. Due to its low cytotoxicity, good water solubility, and high sensitivity, probe 1 was successfully applied in the sequential recognition of Cu2+ and ATP in aqueous solution and HeLa cells. The highly selective and sensitive ability of 1-Cu2+ complex to detect ATP even enables its bio-analytical applications in real-time imaging in living cells. (C) 2016 Elsevier B.V. All rights reserved.
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页码:438 / 446
页数:9
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