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Related Experiment Video

Updated: Apr 7, 2026

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Jellyfish-Inspired Ultrafast and Versatile Magnetic Soft Robots for Biomedical Applications.

Yuxuan Sun1,2,3, Ruiqi Liu1,2, Chiyuan Ma1,2

  • 1Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074, China.

Cyborg and Bionic Systems (Washington, D.C.)
|April 6, 2026
PubMed
Summary
This summary is machine-generated.

We developed a jellyfish-inspired magnetic soft robot (J-MSR) that swims ultrafast by mimicking jellyfish propulsion. This versatile robot navigates complex liquid environments and performs various biomedical tasks.

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Area of Science:

  • Robotics
  • Biomimetics
  • Fluid Dynamics

Background:

  • Soft robots need rapid and adaptive locomotion for complex environments.
  • Jellyfish propulsion is an efficient natural model for aquatic locomotion.

Purpose of the Study:

  • To develop a jellyfish-inspired magnetic soft robot (J-MSR) with ultrafast swimming and multimodal motion capabilities.
  • To optimize magnetic actuation for enhanced propulsion and versatile movement in liquid environments.

Main Methods:

  • Utilized an asymmetric trapezoidal magnetic field waveform for actuation.
  • Performed magnetic-fluid-solid multiphysical field coupling analysis.
  • Optimized magnetic field waveforms for propulsion enhancement.

Main Results:

  • Achieved a record swimming speed of 14.85 body lengths per second.
  • Demonstrated multimodal motions including multidirectional swimming, slit traversal, and rolling without auxiliary buoyancy.
  • Successfully integrated functional devices for tasks like light emission, object capture, and microneedle injection.

Conclusions:

  • The J-MSR exhibits superior propulsion and versatile locomotion in liquid environments.
  • The robot's capabilities enable diverse biomedical applications in confined and unstructured spaces.
  • This J-MSR serves as a promising platform for advanced soft robotics in challenging environments.