Detection of H2S in RAECs using H2S probe 7-Azido-4-Methylcoumarin

JL Jiaqi Liu
JW Jichao Wu
AS Aili Sun
YS Yu Sun
XY Xiangjing Yu
NL Ning Liu
SD Shiyun Dong
FY Fan Yang
LZ Linxue Zhang
XZ Xin Zhong
CX Changqing Xu
FL Fanghao Lu
WZ Weihua Zhang
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The turn-on fluorescence response of H2S in RAECs was tested using 7-Azido-4-Methylcoumarin, (C-7Az, Sigma), which has been proved to selectively respond to H2S. RAECs were incubated with 50 μM C-7Az PBS for 30 min, followed by washing of the cells with PBS. Visualization of the turn-on fluorescence response of C-7Az to H2S in RAECs was carried out using fluorescence microscopy with the excitation of a 720 nm laser. These results confirmed that excitation fluorescence imaging could be used to detect H2S through the triggered fluorescence response of C-7Az.

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