absorption cross sections (δmax > 790 GM), and high selectivity to the plasma membrane. In cultured cells and in vivo hepatic tissue imaging, THQ-Mem showed bright TP-excited fluorescence (TPEF) and remarkable selectivity for the plasma membrane. Furthermore, simultaneous in vivo imaging with THQ-Mem and a TP lipid droplet probe could serve as an efficient tool to monitor morphological and physiological
质膜是细胞外缘的
磷酸甘油酯双层,在
生物系统中起着多种重要作用。活体样品中质膜的可视化对于
生物功能的各种应用很重要。我们开发了一种两亲性双光子 (TP) 荧光探针 (
THQ-Mem ) 以选择性地监测活样品中的质膜。该探针表现出红色发射 (620–700 nm)、大 TP 吸收截面 (δ max > 790 GM) 和对质膜的高选择性。在培养细胞和体内肝组织成像中,
THQ-Mem显示出明亮的 TP 激发荧光 (TPEF) 和对质膜的显着选择性。此外,体内同时使用
THQ-Mem和 TP 脂滴探针成像可以作为监测质膜和脂滴形态和生理变化的有效工具。