enable researchers and clinicians to visualize biological events in living cells, tissues, and organs in real time. Herein, the focus is on the structure and properties of the relatively rare benzo[ a]xanthenes that exhibit enhanced steric and electronic interactions due to their annulated structures. Three types of fluorophores were synthesized: (i) pH- and solvent-dependent seminaphthorhodafluors, (ii)
荧光小分子使研究人员和临床医生能够实时观察活细胞,组织和器官中的
生物事件。在本文中,重点是相对稀有的苯并[a]
黄嘌呤的结构和性质,该苯并[x]
黄嘌呤由于其环化结构而显示出增强的空间和电子相互作用。合成了三种类型的荧光团:(i)pH和溶剂依赖性的准六
氟ho,(ii)pH和溶剂依赖性的准六
氟semi,以及(iii)pH无关但对溶剂敏感的准六
甲胺。这些探针显示出有希望的远红外到近红外(NIR)发射,大的斯托克频移,半峰宽(fwhm)的宽全宽度,相对较高的量子产率以及在
免疫荧光染色中的实用性。