Synthesis of Fluorescent Gelators and Direct Observation of Gelation with a Fluorescence Microscope
作者:Kenji Hanabusa、Takuya Ueda、Shingo Takata、Masahiro Suzuki
DOI:10.1002/chem.201603295
日期:2016.11.14
and trans‐(1R,2R)‐diaminocyclohexane. The emission behaviors of the gelators were investigated, and their gelation abilities studied against 15 solvents. The minimum gel concentration, variable‐temperature spectroscopy, transmission electron microscopy, scanning electron microscopy, fluorescence microscopy (FM), and confocal laser scanning microscopy (CLSM) were used to characterize gelation. The intermolecular
荧光素,苯并噻唑,喹啉,stilbene-,和含咔唑的荧光胶凝剂已经通过连接胶凝驱动段,包括合成的升-异亮氨酸,升-缬氨酸,升-苯丙氨酸,升-亮氨酸残基,环(升-天冬酰胺基-1-苯丙氨酰基)和反式-(1 R,2 R)-二氨基环己烷 研究了胶凝剂的发射行为,并研究了它们对15种溶剂的胶凝能力。最低凝胶浓度,可变光谱,透射电子显微镜,扫描电子显微镜,荧光显微镜(FM)和共聚焦激光扫描显微镜(CLSM)用于表征凝胶化。NH和C = O之间的分子间氢键,范德华相互作用和π–π堆积在胶凝中起重要作用。发射的颜色与胶凝剂的荧光结构有关。FM观察到以其发射颜色为特征的纤维聚集体。通过每0.1μm的CLSM捕获的图像叠加到固定深度即可生成3D图像。3D图像显示,微米级的大聚集体沿三维分布。对混合胶凝剂的FM观察进行了研究。在胶凝的情况下,具有相同胶凝驱动链段的两个结构相关的胶凝剂会导致胶凝剂通过相似的氢键