With the advent of direct laser writing using two-photon polymerization, the generation of high-resolution three-dimensional microstructures has increased dramatically. However, the development of stimuli-responsive photoresists to create four-dimensional (4D) microstructures remains a challenge. Herein, we present a supramolecular cholesteric liquid crystalline photonic photoresist for the fabrication of 4D photonic microactuators, such as pillars, flowers, and butterflies, with submicron resolution. These micron-sized features display structural color and shape changes triggered by a variation of humidity or temperature. These findings serve as a roadmap for the design and creation of high-resolution 4D photonic microactuators.

中文翻译：

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使用光子光刻胶直接对四维结构彩色微致动器进行激光写入。

随着使用两光子聚合的直接激光写入的出现，高分辨率三维微观结构的产生已大大增加。然而，刺激响应性光致抗蚀剂的开发以产生四维（4D）微结构仍然是挑战。在这里，我们提出了一种超分子胆甾型液晶光子光刻胶，用于制造亚微米分辨率的4D光子微致动器，例如柱子，花朵和蝴蝶。这些微米级的特征显示了湿度或温度变化触发的结构颜色和形状变化。这些发现可作为设计和创建高分辨率4D光子微致动器的路线图。