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Ratiometric Detection of Viscosity Using a Two-Photon Fluorescent Sensor
被引:117
|作者:
Liu, Fei
[1
]
Wu, Tong
[1
]
Cao, Jianfang
[1
]
Cui, Shuang
[2
]
Yang, Zhigang
[1
]
Qiang, Xinxin
[1
]
Sun, Shiguo
[1
]
Song, Fengling
[1
]
Fan, Jiangli
[1
]
Wang, Jingyun
[2
]
Peng, Xiaojun
[1
]
机构:
[1] Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China
[2] Dalian Univ Technol, Sch Life Sci & Biotechnol, Dalian 116024, Peoples R China
基金:
美国国家科学基金会;
关键词:
cells;
fluorescence;
sensors;
two-photon microscopy;
viscosity;
MOLECULAR ROTORS;
CELLS;
D O I:
10.1002/chem.201202646
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
In the thick of it: A carbazole-based cyanine derivative has been used as a ratiometric fluorescent sensor to detect mitochondrial viscosities over the range 1-950 cP within live cells and living tissues by using two-photon microscopy. Its success is based on the fast- and low-barrier rotation around its methine bond (see figure) and the huge increase of the fluorescence quantum yield (QY) from the loss of mobility in viscous media. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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页码:1548 / 1553
页数:6
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