Perylenequinone-based “turn on” fluorescent probe for hydrogen sulfide with high sensitivity in living cells
作者:Ju-Peng Chen、Yi-Meng Duan、Wen-Jun Zheng、Qi Zhang、Qianshou Zong、Shaojin Chen、Kun-Peng Wang、Zhi-Qiang Hu
DOI:10.1016/j.saa.2019.03.112
日期:2019.7
corresponding studies and the detection limit is 3.6 μM. The response mechanism is proved to be the reduction of the probe by H2S, which is confirmed by 1H NMR. Furthermore, through the fluorescence turn-on signal toward H2S in Hela cells, probe DPD was successfully applied to monitor H2S in living Hela cells.
硫化氢(H 2 S)是许多生理过程中的一种气态信号分子。为了检测H 2 S,设计并合成了一种新型的“开启”荧光探针6,12-二羟基per-1,7-二酮(DPD)。探针DPD是荧光沉默剂,而加入H 2 S则诱导出明显的绿色荧光,其颜色从深蓝色变为黄绿色。该探针在宽的有效pH范围(4–10)中显示出优异的选择性,快速响应(2.5分钟)和线性曲线(0–90μM)。在相应的研究中也揭示了竞争实验,检测限为3.6μM。事实证明,其响应机制是探针被H 2 S还原,这一结果由1证实。1 H NMR。此外,通过荧光开启朝向H信号2在Hela细胞中S,探针DPD成功地应用于监控ħ 2 S IN活Hela细胞。