Section
Highlights
3D printable supramolecular hydrogels with tunable mechanical properties and stiffness adaptability were enabled by strong and weak H-bonding cooperative interactions and microphase separation.
Sucker structure with an alterable membrane was designed and fabricated with 3D printing to realize reliable and gentle switchable adhesion.
Octopus-inspired hydrogel gripper that is capable of delicately handling ultra-soft underwater objects in the form of nondestructive surface release was achieved.