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RoboJelly: hydrogen fuel powered biomimetic jellyfish

Researchers at the Bio-Inspired Materials and Devices Laboratory at Virginia Tech have developed and are testing a hydrogen fuel powered robotic jellyfish. The jellyfish consists of a silicone bell structure with nano-platinum catalyst-coated multi-wall carbon nanotube (MWCNT) sheets, wrapped on the surface of nickel–titanium (NiTi) shape memory alloy. As a mixture of oxygen and hydrogen gases makes contact with the platinum, the resulting exothermic reaction activates the nickel–titanium (NiTi)-based shape memory alloy which flexes thus causing the jellyfish to propel itself.

Website link: Smart Materials and Structures: Hydrogen-fuel-powered bell segments of biomimetic jellyfish (article abstract)

Website link: Virginia Tech: Bio-Inspired Materials and Devices Laboratory – Alex Villanueva