Supplementary Figure 5: Post-treatment of an HHF.
From: Preparation of biomimetic hierarchically helical fiber actuators from carbon nanotubes
(a) Infiltrating the whole fibre with ethanol. (b) Slightly relaxing the fibre to observe the excessive twisting by moving the moveable substrate towards the motor. (c) An entanglement confirming the excessive twisting. (d) Clockwise rotation of the motor to release the excessive twisting. Scale bar in a, b and d, 2 cm. Scale bar in c, 2 mm.
