Helical structures, almost ubiquitous in biological systems, have inspired the design and
manufacturing of helical devices with applications in nanoelecromechanical systems,
morphing structures, optoelectronics, micro-robotics, and drug delivery devices. Meanwhile,
multi-stable structures, represented by the Venus flytrap and slap bracelet, have attracted
increasing attention due to their applications in making artificial muscles, bio-inspired robots,
deployable aerospace components, and energy harvesting devices. Here we show that the …