3D-printed ethanol-powered particles move on water via the Marangoni effect and cluster via the Cheerios effect, with designs that translate, spin, and link into programmable assemblies.
Capillary surfers: wave-driven particles at a vibrating fluid interface
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ActiveCheerios: 3D-Printed Marangoni-Driven Active Particles at an Interface
3D-printed ethanol-powered particles move on water via the Marangoni effect and cluster via the Cheerios effect, with designs that translate, spin, and link into programmable assemblies.