external stimuli and broadened the mind of chemists for developing smart materials
with certain functions.
17.4 Conclusion
In summary, the construction of supramolecular CD hydrogels is a hot research field
under fast development. The main driving forces for the construction of CD
hydrogels are dynamic non-covalent interactions such as hydrogen bonding, hostguest bonding, ionic interactions, etc. Sometimes covalent bonds were introduced to
CD gels to enhance the gels’ mechanical properties at the expense of the dynamic
self-healing properties. How to rationally use various covalent and non-covalent
functions to build CD hydrogel materials with excellent performance is still an
important issue that people need to pay close attention to.
Fig. 22 Schematic illustration of the metal ion-responsive host and guest gels and their adhesive
property [72]
Fig. 23 Schematic illustration of the fabrication process of a multi-stimuli-responsive hydrogel
[73]
504
Q. Zhao et al.
with certain functions.
17.4 Conclusion
In summary, the construction of supramolecular CD hydrogels is a hot research field
under fast development. The main driving forces for the construction of CD
hydrogels are dynamic non-covalent interactions such as hydrogen bonding, hostguest bonding, ionic interactions, etc. Sometimes covalent bonds were introduced to
CD gels to enhance the gels’ mechanical properties at the expense of the dynamic
self-healing properties. How to rationally use various covalent and non-covalent
functions to build CD hydrogel materials with excellent performance is still an
important issue that people need to pay close attention to.
Fig. 22 Schematic illustration of the metal ion-responsive host and guest gels and their adhesive
property [72]
Fig. 23 Schematic illustration of the fabrication process of a multi-stimuli-responsive hydrogel
[73]
504
Q. Zhao et al.