针对多个有机体的1,8-纳二衍生物用于检测有机体的极性
Hao-Chi Hao1, Gang Zhang2, Ru Sun1
1College of Chemistry, Chemical Engineering and Materials Science, Soochow University, No. 199 Ren'Ai Road, Suzhou 215123, China. sunru924@hotmail.com.
Journal of materials chemistry. B
|July 4, 2023
概括
来自1,8-纳二的新光染料可以准细胞中的特定细胞器. 这些极度敏感探测器显示了监测器官环境和开发新成像工具的潜力.
科学领域:
- 有机化学 有机化学
- 化学生物学 化学生物学
- 分子成像学分子成像学
背景情况:
- 1,8-纳二衍生物是开发功能分子的多功能支架.
- 光探针对于可视化细胞结构和过程至关重要.
- 特定于有机体的向提高了分子成像的精度.
研究的目的:
- 合成具有明显的有机细胞向能力的新型1,8-纳二衍生物.
- 研究这些新染料的光物理性质和环境敏感性.
- 为了证明它们作为对极性敏感探头的实用性,用于活细胞有机体成像.
主要方法:
- 诺维纳格尔凝结反应用于合成四种1,8-纳二衍生物 (1a-1d).
- 光谱分析 (吸收和发射) 用于确定光学特性.
- 溶解色学研究以将光学特性与溶剂极性相关联.
- 在活着的HeLa细胞中进行了共聚焦显微镜和同位体化实验.
主要成果:
- 合成了四种1,8-纳胺衍生物 (1a-1d),具有不同的有机细胞向能力.
- 观察到的最大吸收频段在375-447nm,排放峰值在495-605nm.
- 证明光辐射随着系统极性增加而转移到更长的波长.
- 随着极度的增加,光强度显著下降,极度下降时增强12-239倍.
- 在活细胞中确认了有机细胞的定位 (线粒体,脂质滴,溶酶体,内等质网膜) 和极性监测.
- 在极性溶剂中实现了大的斯托克斯移位 (高达229纳米).
结论:
- 该研究提出了一个分子设计策略,用于创建基于常见的光体的有机细胞向,极性敏感的光探针.
- 开发的1,8-纳二衍生物显示出对特定器官中的细胞内极性实时监测的前景.
- 这项工作为开发用于生物成像和诊断的先进光探针提供了新的替代方案.
更多相关视频
08:27Visualization and Quantification of Endogenous Intra-Organelle Protein Interactions at ER-Mitochondria Contact Sites by Proximity Ligation Assays
Published on: October 20, 2023
1.7K
11:59Author Spotlight: Detection of Mitophagy in Caenorhabditis elegans and Mammalian Cells Using Organelle-Specific Dyes
Published on: May 19, 2023
2.3K
相关概念视频
Cell Polarization by Rho Proteins
2.7K
Cell polarity is the asymmetric distribution of cellular and membrane components, making one side of the cell different from the other. This polarity is essential to many processes such as embryogenesis, axon migration, glucose transport across epithelial cells, and directional cell migration. A migrating cell responds to intracellular or extracellular signals via molecular cascades that reorganize the actin cytoskeleton to establish this polarity. In these cells, the Rho family proteins Cdc42,...
2.7K
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)
408
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT) is an advanced Nuclear Magnetic Resonance (NMR) technique specifically designed to detect and enhance the signals of low-abundance nuclei, such as carbon-13 and nitrogen-15, in small molecules. The fundamental principle behind INEPT is the transfer of polarization from a more abundant and highly polarizable nucleus, typically hydrogen-1, to the low-abundance nucleus of interest. This process effectively boosts the NMR signal of the...
408
