viscosity are attractive candidates for the study of intracellular environments. We report a new class of luminescent rotors, based on the sensitized emission of a terbium(III) complex. A 4-fold increase in both quantum yield and luminescence lifetime was observed in viscous media for the studied complexes, with a lifetime ranging from 0.23 to 0.89 ms over a broad range of viscosities (0.6-1200 cP)
能够直接测量粘度的荧光探针是研究细胞内环境的有吸引力的候选者。我们报告了一类基于
铽 (III) 复合物的敏化发射的新型发光转子。在粘性介质中观察到所研究的复合物的量子产率和发光寿命增加了 4 倍,寿命范围为 0.23 至 0.89 ms,范围很广(0.6-1200 cP)。所提出的方法依赖于
镧系离子的毫秒级发光寿命,使用时间采样寿命成像显微镜应用于固定的 T24 癌细胞。