Unique fluorescence properties of a self-assembling bis-pyrene molecule
作者:Zhaozhong Li、Yang Li、Dong Wang、Qing Cui、Zhengqiang Li、Lei Wang、Huai Yang
DOI:10.1016/j.cclet.2018.01.056
日期:2018.11
A self-assembling bis-pyrene (BP) molecule with pi-pi interactions was designed and synthesized. In condensed state, the BP self-assembled into highly-ordered mesophase at room temperature, which was characterized by using differential scanning calorimetry (DSC), polarized optical microscope (POM), and 1D wide angle X-ray diffraction (WAXD) techniques. In solution, the BP self-assembled into nanofibers in the mixed dichloromethane and hexane (1:1 volume ratio) solvent. Interestingly, the BP was not fluorescent when dissolved in dichloromethane solution. However, the self-assembled nanostructures of BP in the mixed solvent showed high intensity of green fluorescence. The advantages of self-assembly and fluorescence feature exhibited that BP could be promising fluorescence nanoprobes or nanosensors for various applications. (C) 2018 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.