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Flipper-TR®是一种荧光探针,它能特异性靶向细胞的质膜,并通过其荧光寿命的变化来报告膜张力的变化。它是Flipper探针家族中最先进的成员2,3),该家族通过机械响应基团的两个扭曲二噻吩并噻吩之间的扭转角和极化变化,感知脂质双层膜结构的变化。Flipper-TR®会自发插入细胞的质膜,且只有插入脂质膜时才会发出荧光。它具有较宽的吸收和发射光谱,通常可用488nm激光进行激发,而发射光则在575至625nm之间收集。关于染色和FLIM成像的详细方案,可在产品说明书中找到。Flipper-TR®适用于多种生物,包括植物、革兰氏阳性细菌、酵母4)和哺乳动物1)。探针的量可支持50–200次染色实验。
Photophysical properties
λabs 480 nm
λfl 600 nm
εmax 1.66·104 mol-1·cm-1 (in DMSO)lifetime 2.8-7 ns
QY 30% (in AcOEt)
关键词:- 活细胞荧光膜张力探针Flipper-TR
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产品组分
内容 型号 规格 储存温度
活细胞荧光膜张力探针Flipper-TR
SC020 35-200slides
-20°C 操作手册
1 1 常温
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注意事项
保存建议 厂家推荐蓝冰运输。当您收到产品后,按照说明书建议保存于-20°C。 -
FAQ

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1) Colom A, et al: A fluorescent membrane tension probe. Nat Chem, 2018, 10:1118–1125 ().
2) Dal Molin M, et al: Fluorescent flippers for mechanosensitive membrane probes. JACS, 2015, 137:568-571.
3) Soleimanpour S, et al: Headgroup engineering in mechanosensitive membrane probes. Chem Commun (Camb) 2016, 52:14450-14453.
4) Riggi M, et al: Decrease in plasma membrane tension triggers PtdIns(4,5)P2 phase separation to inactivate TORC2, Nat Cell Biol, 2018 Sep; 20 (9): 1043–1051
*Based on the following conditions: 0.5 – 1 ml staining solution / staining experiments with 0.5 – 1 uM probe concentration. The number of staining experiments can be further increased by reducing volume or probe concentration.
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