文献类型：期刊文献

英文题名：Transient Assembly of Macroscopically Structured Supramolecular Hydrogels Driven by Shaped Chemical Fuels

作者：Bai, Shengyu[1];Wang, Hucheng[1];Gu, Guanyao[1];Zhang, Jiahao[1];Wei, Lai[1];Gao, Yuliang[1];Li, Zhongqi[1];Guo, Xuhong[1];Wang, Yiming[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Key Lab Intelligent Sensing & Detect Tech, Shanghai 200237, Peoples R China

年份：2023

卷号：5

期号：9

起止页码：2377

外文期刊名：ACS MATERIALS LETTERS

收录：;EI(收录号：20233414615633);WOS:【SCI-EXPANDED(收录号:WOS:001042174800001)】；

基金：We acknowledge the financial support of the Shanghai Pilot Program for Basic Research (22TQ1400100-9), "Chenguang Program" supported by the Shanghai Education Development Foundation and Shanghai Municipal Education Commission (20CG36), Natural Science Foundation of Shanghai (22ZR1417700), National Key Research and Development Program of China (2022YFD70050101), and the Open Project of State Key Laboratory of Chemical Engineering (SKL-ChE-23C01).

语种：英文

外文关键词：Cryptography - Hydrogels - Supramolecular chemistry

摘要：Macroscopically structured supramolecular hydrogels areappealingplatforms for broad applications, ranging from biomedicine to softelectronics; yet, the developed examples are usually static, incapableof evolving their structures and properties over time. Here, we showhow the transient assembly of macroscopically structured supramolecularhydrogels can be realized by using shaped chemical fuels. The shapedfuels are made by simply loading high-energy chemicals in solid gelswith well-defined shapes. The loaded fuels can diffuse out and generategradients in the vicinity of the solid gels, thereby driving transientassembly of supramolecular hydrogels that inherit the shapes of thesolid gels. The macroscopic structures and lifetimes of the hydrogelscan be tuned by changing the shapes and contents of the fuels, respectively.Such a shaped fueling dynamic self-assembly strategy is further designedfor dynamic information encryption, whereby the encoded informationcan only be read for one time and within a defined period.