申请人:Shenzhen University
公开号:EP3744810A1
公开(公告)日:2020-12-02
Disclosed are a fluorescent dye, a preparation method and an application thereof. The fluorescent dye has a general structural formula as shown in formula (I), wherein X and Y are same or different and selected from O, S, C(CH3)2 or NR6; R2 and R3 are the same or different and selected from hydrogen or a functional group; R1, R4, R5 and R6 are all functional groups; and Z- is a negative ion. The fluorescent dye has an ability to permeate the living cell membrane, so that it can be used in the fluorescence imaging of living cell microstructures, and can also be used in the STED super-resolution fluorescence imaging and laser scanning confocal microscopy of live cells.
本发明公开了一种荧光染料及其制备方法和应用。该荧光染料的结构通式如式(I)所示,其中X和Y相同或不同,选自O、S、C(CH3)2或NR6;R2和R3相同或不同,选自氢或官能团;R1、R4、R5和R6均为官能团;Z-为负离子。该荧光染料具有渗透活细胞膜的能力,因此可用于活细胞微结构的荧光成像,也可用于活细胞的 STED 超分辨率荧光成像和激光扫描共聚焦显微镜。