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Nicole W Xu1, John O Dabiri2,3

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Area of Science:

  • Robotics
  • Biohybrid Systems
  • Animal Locomotion

Background:

  • Soft robotics faces challenges in actuation, control, and power.
  • Robotic manipulation of animal locomotion offers insights into biology.
  • Current aquatic robots have high power requirements.

Purpose of the Study:

  • To develop a biohybrid robot for controlling live jellyfish locomotion.
  • To enhance jellyfish swimming propulsion using external power.
  • To investigate the power efficiency of biohybrid robots.

Main Methods:

  • Integrated microelectronics with live jellyfish.
  • Stimulated jellyfish body contractions at specific frequencies.
  • Measured swimming speed and metabolic expenditure.

Main Results:

  • Propulsion enhanced nearly threefold by driving contractions at optimal frequencies.
  • Swimming speed increased with only a twofold rise in metabolic expenditure.
  • Biohybrid robot achieved 10-1000 times less external power per mass than other aquatic robots.

Conclusions:

  • Biohybrid robots can significantly enhance animal locomotion efficiency.
  • This technology offers a low-power, high-performance solution for aquatic robotics.
  • Potential applications include advanced ocean monitoring systems.