Composite polymer hydrogels with high and reversible elongation under magnetic stimuli

The field of soft actuators is dominated by elastomers that experience mechanical deformations in response to external stimuli. In this context, magnetic stimuli attract considerable interest because their easy application, tunability, fast response, remote actuation, and safe penetration biological environments. Since very recently, research interests the are being redirected towards hydrogels, which could virtually replace elastomers, overcoming limitations expanding application actuators. actuation hydrogels a nascent full challenges, such as achieving reliable significant responsiveness. Here we demonstrate combination physical polymer hydrogel with dispersed phase consisting clusters particles, results composites exhibit high reversible elongation Our analyses show strongly dependent on matrix elasticity, concentration particle distribution within network nanofibres. strategy for maximization should be catalyst development novel applications composite valve remotely actuated also present here proof-of-concept.