手性超分子凝胶材料的研究进展-中国材料进展

文章信息/Info

Author(s):: LIU Guofeng; ZHANG Di; FENG Chuanliang; (State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China)

摘要:: 超分子凝胶作为一类新型的智能自组装软材料，从分子水平到微纳米水平的组装过程中，手性发挥了重要的作用。一般情况下，手性信号都是直接从分子转换到纳米纤维中，但也有一些有趣的现象，即混合两种对映体可以调控得到不同手性形态的纤维结构，甚至一些本身不具备手性的构筑块同样可以通过外界诱导得到具有手性结构的组装体。对纤维手性自组装机理的研究不仅揭示了分子手性到纤维微纳米手性转换这一重要过程，而且对新型的手性材料和微纳米器件的开发也有启发作用。有关微纳米水平的手性材料在手性识别、不对称催化、生物大分子结晶和无机材料的手性模板剂、生物医用等领域的应用研究也逐渐得到重视。主要综述了近二十年来有关手性超分子凝胶的研究，主要从凝胶因子的手性自组装、手性在分子水平和微纳米水平上的形貌调控和表征方法、超分子凝胶的手性应用几个方面进行概述，并对手性超分子凝胶的应用和研究前景进行了展望。

Abstract:: Supramolecular gel is a kind of new intelligent selfassembly soft material. The chirality has played an important role in constructing chiral information from molecular level to nanometer fiber level. In most cases, chiral information is directly constructed from molecular building to the nanometer fiber. There are also some interesting phenomenon, which is that two mixed two enantiomers can get different chiral fiber structure, even someone building blocks with no chiral can also get chiral selfassembly structures. Studying chiral selfassembly not only reveals the process of switching chiral information from molecules to micro/nano chiral fiber, but also promotes the development of novel chiral materials and micro/nano devices. The application of fiber chiral in chiral recognition, asymmetric catalysis, biological mineralization, biological materials, and other areas has been paid attention. This paper summarizes recent progress in the chiral fiber assembly, mainly on structure and function of the chiral supramolecular gel.