Synthesis of a Double-Network Supramolecular Hydrogel by Having One Network Catalyse the Formation of the Second
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- 作者：Dr. Nishant Singh ; Dr. Chandan Maity ; Kai Zhang ; Dr. Cé ; sar A. Angulo-Pachó ; n ; Prof. Dr. Jan H. van Esch ; Dr. Rienk Eelkema and Dr. Beatriu Escuder
- 刊名：Chemistry - A European Journal
- 出版年：2017
- 出版时间：February 10, 2017
- 年：2017
- 卷：23
- 期：9
- 页码：2018-2021
- 全文大小：930K
- ISSN：1521-3765
文摘
Self-assembly of biomolecules catalytically controls the formation of natural supramolecular structures, giving highly ordered complex materials. Such desirable hybrid systems are very difficult to design and construct synthetically. A hybrid double-network hydrogel with a maximum storage modulus (G′max) of up to 55 kPa can be synthesized by using a self-assembled hydrogel that catalyses the formation of another kinetically arrested hydrogel network. Tuning of the catalytic efficiency of the first network allowed spatiotemporal control over the evolution of the second network and the resulting mechanical properties. The distribution of active catalytic sites was optimal for catalytic fibres prepared at the minimum gelation concentration (MGC) to give the double-network hydrogel with highest storage modulus. This approach could be very useful in preparing complex hierarchical structures with tailor-made properties.