Biomedical jellyfish-inspired robot hits record swim speeds without onboard power

Researchers built a jellyfish-inspired magnetic soft robot that swims at a record 14.85 body lengths per second without onboard power.

Using externally applied magnetic fields and optimized asymmetric waveforms, it can steer, switch motion modes, and carry tools or sensors.

The robot navigated complex spaces, including an ex vivo pig stomach model, showing promise for biomedical inspection and treatment.

Its wireless, power-free control could enable faster, more adaptable minimally invasive procedures inside the body.