A Baldwin-favored Cyclization Inspires the Development of Fluorogenic Polymethine Dyes for Bioimaging
作者:Annabell Martin、Pablo Rivera Fuentes
DOI:10.2533/chimia.2024.196
日期:——
fluorogenic dyes are crucial to enhance cell permeability and target intracellular structures with high specificity. Polymethine dyes are vitally important fluorophores in single-molecule localization microscopy and in vivo imaging, but their use in live cells has been limited by high background fluorescence and low membrane permeability. Here, we present a general strategy to transform polymethine compounds
荧光成像是研究生物过程的宝贵工具,荧光染料对于增强细胞通透性和高特异性靶向细胞内结构至关重要。聚次甲基染料是单分子定位显微镜和体内成像中极其重要的荧光团,但它们在活细胞中的使用受到高背景荧光和低膜渗透性的限制。在这里,我们提出了一种通过实施 5-exo-trig 闭环将聚次甲基化合物转化为荧光染料的通用策略。该方法提供了明亮的荧光聚次甲基染料,其发射范围遍及可见光和近红外光谱。