Figure 3
From: Remotely Triggered Locomotion of Hydrogel Mag-bots in Confined Spaces
The changes in temperature and swelling ratio of hydrogels with Fe 3 O 4 loadings of (a) 1.25 wt%; (b) 2.5 wt% and (c) 5 wt% in response to AMF stimuli, respectively. In each column, the first row shows the switching on/off of the magnetic field, the second row shows the change in temperature and the third row shows the respective changes in swelling ratio.
