The visual detection of mitochondrial viscosity is of considerable significance in that it is associated with various cellular functions. Herein, a novel red-emitting viscosity probe YD-Mito constructed by linking phenylamine derivatives and benzo[e]indolium through a C–C double bond has been designed and synthesized. It was found that YD-Mito exhibited a special response to viscosity accompanying with a sharp fluorescence enhancement (20-fold) at 620 nm. Importantly, YD-Mito can precisely localized in mitochondria independent from membrane potential and visualized the mitochondrial viscosity. Therefore, probe YD-Mito could provide a powerful tool for the determination of mitochondrial viscosity.
线粒体粘度的可视化检测具有重大意义,因为它与各种细胞功能相关。本文设计并合成了新型红色发光粘度探针YD-Mito,该探针通过C-C双键将
苯胺衍
生物和苯并[e]
吲哚连接起来。研究发现,YD-Mito对粘度表现出特殊的响应,在620nm处荧光增强(20倍)。重要的是,YD-Mito可以精确地定位在线粒体中,不受膜电位的影响,并可视化线粒体的粘度。因此,探针YD-Mito可以为测定线粒体粘度提供有力的工具。