Figure 4.

a) Design of a helix inscribed in microgel. b) Phase contrast image and schematic illustration of flower‐like microgel where helical structure (φ = 1 and 50 µm, pitch = 500 nm) was written when swelled in water at 20 °C. c) 3D‐reconstructed CLSM image of helix written in microgels swelled in water. d) Thermal actuation of microgel when temperature was increased over LCST. The microgel transformed the shape to flat at 30 °C and flapped at 32 °C. Scale bars, 50 µm.