by easy modifications on the phenolic hydroxy group. Based on WR6, two NIR fluorescent turn‐on probes, WSP‐NIR and SeSP‐NIR, were devised for the detection of H2S. The probe SeSP‐NIR was applied in visualizing intracellular H2S. These dyes are expected to be useful fluorophore scaffolds in the development of new NIR probes for bioimaging.
具有良好光物理性质的近红外(NIR)荧光
染料在
生物成像方面非常有用,但是这种
染料仍然很少见。描述了通过用稠合的四氢
喹喔啉环修饰Rhodol支架来开发一类独特的NIR
染料。这些新
染料显示出较大的斯托克斯位移(> 110 nm)。其中,WR3,WR4,WR5和WR6在
水溶液中显示出高的荧光量子产率和出色的光稳定性。而且,它们的荧光特性可通过
对酚羟基的简单修饰来调节。基于WR6,二NIR荧光接通探针,W
SP-NIR和
SESP-NIR,被设计成用于检测H的2 S.探针
SESP-NIR在可视化细胞内H为施加2S.预期这些
染料将在开发用于
生物成像的新型NIR探针中用作有用的荧光支架。