Synthesis and Photophysical Behavior of a Highly Fluorescent Family of Unsymmetrical Organoboron Complexes Containing 5-(Pyridin-2-ylmethylene)imidazolidine-2,4-dione Moieties
作者:M. Soledad Garre、Raúl Losantos、Sara Gutiérrez、David Sucunza、Patricia García-García、Diego Sampedro、Juan J. Vaquero
DOI:10.1021/acs.joc.9b02451
日期:2020.1.17
A new and highly fluorescent family of unsymmetrical organoboron complexes containing 5-(pyridin-2-ylmethylene)imidazolidine-2,4-dione moieties has been synthesized in three steps. These compounds show strong absorptions covering a wide range of the UV-vis spectrum and are strongly emissive (ϕf of up to 0.92 in CH3CN). Moreover, two fluorophores that include an alkyne or an azide group at the end of
2,5-Dimethoxy-Benzylidene-Rhodanine and Its Acyclic Analogues as Selective Fluorogenic Dyes for Lipid Droplets of Living Cells
作者:S. A. Krasnova、Yu. A. Bogdanova、A. I. Sokolov、I. N. Myasnyanko、A. Yu. Smirnov、M. S. Baranov
DOI:10.1134/s1068162024010059
日期:2024.2
desirable target for fluorescent labeling. In this work, we proposed a number of new fluorogenic compounds—arylidene-rhodanines and their acyclic analogues – substances that label lipid droplets due to structural fragments responsible for the appearance of fluorescence in a lipophilic environment. Methods: The target arylidene-rhodanines and their acyclic analogues were obtained using modified literature
摘要 目的:脂滴(脂肪体)是具有独特结构和功能的细胞器,在能量稳态、脂毒性和氧化应激预防中发挥重要作用,因此是荧光标记的理想目标。在这项工作中,我们提出了许多新的荧光化合物——亚芳基绕丹宁及其无环类似物——这些物质可以标记脂滴,因为结构片段负责在亲脂环境中出现荧光。方法:使用改进的Knoevenagel缩合文献方法获得目标亚芳基绕丹宁及其无环类似物,研究所得化合物在一组标准溶剂中的光学性质,然后在Hela京都上测试最有前途的物质作为荧光染料使用宽视野显微镜观察细胞。讨论:我们发现含有 2,5-二甲氧基苯亚甲基片段或类似基团的衍生物的特征是荧光量子产率根据环境特性而发生显着变化。研究了此类化合物的细胞标记。我们发现,用物质 ( In ) 和 ( III )孵育 Hela京都细胞会导致 BFP 通道中出现荧光,这与在透射光下观察时在细胞中检测到的脂滴位置相关。结论:结果,我们发现所获得的两种化
Environment-sensitive fluorogens based on a GFP chromophore structural motif
作者:Maxim M. Perfilov、Elvira R. Zaitseva、Alexander Yu Smirnov、Andrey A. Mikhaylov、Nadezhda S. Baleeva、Ivan N. Myasnyanko、Alexander S. Mishin、Mikhail S. Baranov
DOI:10.1016/j.dyepig.2021.110033
日期:2022.2
Selective and visual detection of a nerve agent mimic by phosphorylation and protonation of quinolin oximes
作者:Yuan-Chao Cai、Chen Li、Qin-Hua Song
DOI:10.1039/c7tc02617j
日期:——
threat to public safety. Consequently, there is an urgent need to develop reliable and facile methods to detect these lethal chemicals. In this paper, three 6-substituted aminoquinolin oximes with different N-substituents have been constructed as donor–acceptor (D–A) chemosensors for a nerve-agentsimulant, diethyl chlorophosphate (DCP). These D–A molecules exhibit a regular change in intramolecular charge