(a) The CLCP ribbons exhibit various shapes depending on the cutting direction (Ribbon A: flat; Ribbon B: left-handed; Ribbon C: open ring; Ribbon D: right-handed). Ribbon B and Ribbon D show winding and unwinding under UV light irradiation for two minutes. (b) A coiled tendril of the wild cucumber plant. (c) A cucumber tendril-like polymer spring with two oppositely handed helices. The right-handed helix unwinds and the left-handed helix winds upon UV light irradiation. Reprinted with permission from Ref. [68].