The detection of subcellular domains in cells can be obtained by specific fluorescent markers. Here we report the use of styryl quinolinium dyes that selectively stain ribosomal RNA (rRNA) in nucleoli and in the cytoplasm of mammalian cells. Specifically, we synthesized a series of 1-methyl-4-(substituted) styryl-quinolinium derivatives, 12a–l. We developed highly efficient microwave-assisted synthesis
细胞中亚细胞结构域的检测可以通过特定的荧光标记获得。在这里,我们报告使用苯乙烯基喹啉鎓染料选择性染色核仁和哺乳动物细胞质中的核糖体RNA(rRNA)。具体来说,我们合成了一系列1-甲基-4-(取代的)苯乙烯基-喹啉鎓衍生物12a - 1。我们开发了高效的微波辅助合成技术,可防止副产物的形成,从而使产物的收率超过90%。化合物12c-f和12i在各种溶剂中的最大吸收在500-660 nm处,摩尔消光系数为25400-49000 M -1 cm -1,并在630-715 nm处发射。染料类12a – l具有高度的光化学稳定性。染料12e特异性染色了核仁和细胞质,并且是无毒的。各种测试表明该染料对rRNA的亲和力明显更高。我们证明12e是一种吸引人的染色试剂,用于可视化和评估固定细胞和活细胞中的rRNA。
Ratiometric Fluorescent Probes for Hydrogen Peroxide from a Focused Library
作者:Sang Wook Lee、Hyun-Woo Rhee、Young-Tae Chang、Jong-In Hong
DOI:10.1002/chem.201302523
日期:2013.10.25
Light shifting: Ratiometricfluorescentprobes for hydrogenperoxide (H2O2) were developed through a focusedlibrary strategy. One of the probes in the library, showed a redshift of over 100 nm and an increase of over 30‐fold in the emission intensity ratio (see scheme). This probe was utilized to detect H2O2 generated during glucose oxidation.
光移:通过聚焦库策略开发了用于过氧化氢(H 2 O 2)的比例荧光探针。文库中的一种探针显示出超过100 nm的红移,并且发射强度比增加了30倍以上(请参阅方案)。该探针用于检测葡萄糖氧化过程中产生的H 2 O 2。
Combinatorial Approach to Organelle-Targeted Fluorescent Library Based on the Styryl Scaffold
作者:Gustavo R. Rosania、Jae Wook Lee、Liang Ding、Hai-Shin Yoon、Young-Tae Chang
DOI:10.1021/ja027587x
日期:2003.2.1
The first fluorescent styryl dye library with a broad color range was synthesized by combinatorial condensation of various aldehydes and methyl pyridinium compounds, and their applications as organelle specific staining probes were demonstrated.
Schneider; Pothmann, Chemische Berichte, 1941, vol. 74, p. 471,479