For chiral hydrogels and related applications, one of the critical issues is how to control the chirality of supramolecular systems in an efficient way, including easy operation, efficient transfer of chirality, and so on. Herein, supramolecular chirality of l‐phenylalanine based hydrogels can be effectively controlled by using a broad range of metal ions. The degree of twisting (twist pitch) and the diameter of the chiral nanostructures can also be efficiently regulated. These are ascribed to the synergic effect of hydrogen bonding and metal ion coordination. This study may develop a method to design a new class of electronically, optically, and biologically active materials.

中文翻译：

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苯丙氨酸基水凝胶的金属离子超分子手性

对于手性水凝胶和相关应用，关键问题之一是如何以有效方式控制超分子系统的手性，包括操作简便，手性有效转移等。在此，通过使用多种金属离子可以有效地控制基于l-苯丙氨酸的水凝胶的超分子手性。还可以有效地调节扭曲度（扭曲间距）和手性纳米结构的直径。这些归因于氢键和金属离子配位的协同作用。这项研究可能会开发出一种设计新型电子，光学和生物活性材料的方法。