Angewandte Chemie International Edition·· 17 小时前精选AI 评分58
肽超分子水凝胶经化学反应驱动自组装与脱水实现相变机器人
Chemical Reaction‐Powered Self‐Assembly and Dehydration of Supramolecular Hydrogels for Phase‐Transitional Robots
AI 导读
研究报道了一种由化学反应驱动的肽超分子水凝胶相变机器人：肽的羧基在加入碳二亚胺后转化为疏水性噁唑酮，中和负电荷并激活自组装成胶。随时间推移疏水噁唑酮逐步生成使网络更疏水，引发脱水导致的宏观收缩，收缩程度可通过改变碳二亚胺浓度调节。该溶胶到凝胶转变加驱动行为使机器人能流入复杂地形抓取并运输货物，并可进入狭窄通道调控电路。
推荐理由
原文给出碳二亚胺浓度调控凝胶收缩程度的对应关系，读者可据此判断这类化学驱动自组装水凝胶的形变可控区间。
创新点
用碳二亚胺把肽羧基转化为疏水噁唑酮，将化学燃料驱动的自组装与随后的脱水收缩串联成同一体系，使凝胶同时具备相变流动与驱动形变能力。
图表、补充材料与最终表述以原文为准。阅读原文
来源：Angewandte Chemie International Edition · doi.org
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