Construction of a Novel Photoresponsive Supramolecular Fluorescent Hydrogel through Host-Guest Interaction between β-Cyclodextrin and Azobenzene

摘要

In the present work, we constructed a novel photoresponsive supramolecular fluorescent hydrogel through host–guest inter- action between β-cyclodextrin group in polymer 1 and azobenzene group in polymer 2. Under different external irradiations, the fluorescent hydrogel exhibited different inten- sities to the photo-isomerisation of azobenzene. Light is an ideal stimulus because of its simple operation and non- introduction of additional impurities. Therefore, this photo- responsive supramolecular hydrogel can serve as an excellent strategy for designing more practical materials.