Ryu Ja-Hyoung, Hong Dong-Je, Lee Myongsoo
National Creative Research Initiative Center for Supramolecular Nano-Assembly and Department of Chemistry, Yonsei University, Seoul, 120-749, Republic of Korea.
Chem Commun (Camb). 2008 Mar 7(9):1043-54. doi: 10.1039/b713737k. Epub 2007 Nov 26.
One of the most fascinating subjects in areas such as nanoscience and biomimetic chemistry is concerned with the construction of novel supramolecular nanoscopic architectures with well defined shapes and functions. Supramolecular assemblies of aromatic rod molecules provide a facile entry into this area. Aromatic rigid rod molecules consisting of hydrophilic flexible chains, in aqueous solution can self-assemble into a variety of supramolecular structures through mutual interactions between aromatic rod molecules and water, including hydrophobic and hydrophilic interactions and pi-pi interaction. The supramolecular architecture in water can be manipulated by variation of the shape of the rigid segments, as well as the relative volume fraction of the flexible segment. The rigid aromatic segments have significant photonic and electronic properties. The self-assembly of aromatic rod molecules in water, therefore, can provide a strategy for the construction of well-defined and stable nanometer-size structures with chemical functionalities and physical properties as advanced materials for photonic, electronic and biological applications.
纳米科学和仿生化学等领域中最引人入胜的课题之一，是构建具有明确形状和功能的新型超分子纳米结构。芳香族棒状分子的超分子组装为进入这一领域提供了一条便捷途径。由亲水性柔性链组成的芳香族刚性棒状分子，在水溶液中可通过芳香族棒状分子与水之间的相互作用，包括疏水和亲水相互作用以及π-π相互作用，自组装成各种超分子结构。水中的超分子结构可通过改变刚性链段的形状以及柔性链段的相对体积分数来调控。刚性芳香族链段具有显著的光子和电子性质。因此，芳香族棒状分子在水中的自组装可为构建具有化学功能和物理性质的明确且稳定的纳米尺寸结构提供一种策略，作为光子、电子和生物应用的先进材料。
