Simultaneous and visual detection of cysteamine based on Michael addition reaction with polydiacetylene liposomes
作者:Thanh Chung Pham、Seongman Lee、Ye Rim Son、Minseok Kwak、Hyun Sung Kim、Songyi Lee
DOI:10.1039/d0tc02721a
日期:——
Furthermore, this chemosensor system displays a clear blue-to-red colorimetric transition in the presence of cysteamine among various biothiols with high selectivity and sensitivity owing to the structural specificity of cysteamine. The resulting PDA solutions were analyzed via FE-SEM, UV-vis, fluorescence and Raman spectroscopy, and chromoisomerism for naked-eye visualization. This chemosensor provides a
在这项研究中,我们报告了一种高度敏感的比色和荧光传感器的制造,该传感器包括用于组装半胱胺浓度的自组装聚二乙炔(PDA)脂质体。所述Ñ -maleimidomethanol(HM)部分被用来作为迈克尔加成受体,这与半胱胺的硫醇基团反应生成马来酰亚胺-硫醇导致共轭主链的构象转变缀合。此外,由于半胱胺的结构特异性,在各种生物硫醇中存在半胱胺的情况下,该化学传感器系统显示出清晰的蓝到红比色转换。通过以下方式分析所得的PDA解决方案FE-SEM,UV-vis,荧光和拉曼光谱以及色异构现象用于肉眼可视化。该化学传感器为检测水溶液和实际样品中的半胱胺提供了一种便捷的方法。