Abstract Trigger-free self-assembly of oligo(ethylene glycol) OEG-based responsive microgels is for the first time described via simple solvent evaporation process at skin temperature and ambient pressure. This unique behaviour is attributed to the intrensic OEG microgel structure and properties due to a negative glass transition temperature, a high adhesion energy, an elastic mechanical property and a high interpenetration of microgels, combined in an all-in-one building block. Furthermore, the encapsulation of magnetic nanoparticles (NPs) into the OEG-based microgels introduced interferential photonic and magnetic properties to the films. These microgels exhibiting simultaneously spontaneous film-forming and colored photonic properties open up the development of a unique easy-to-handle material for cosmetic applications, but also smart patches for healthcare or medicine.

中文翻译：

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通过在皮肤温度下无触发自组装粘性软微凝胶的功能性薄膜

摘要 低聚（乙二醇）OEG 响应微凝胶的无触发自组装首次通过简单的溶剂蒸发过程在皮肤温度和环境压力下进行描述。这种独特的行为归因于内部 OEG 微凝胶结构和特性，因为负玻璃化转变温度、高粘附能、弹性机械性能和微凝胶的高互穿性，结合在一个多合一的构建块中。此外，将磁性纳米粒子 (NPs) 封装到基于 OEG 的微凝胶中为薄膜引入了干涉光子和磁特性。这些微凝胶同时表现出自发成膜和有色光子特性，开辟了一种独特的易于处理的化妆品应用材料，