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Robotic Sensing and Stimuli Provision for Guided Plant Growth
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Submillimeter-scale multimaterial terrestrial robots.

Mengdi Han1, Xiaogang Guo2,3, Xuexian Chen4

  • 1Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing 100871, China.

Science Robotics
|May 25, 2022
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Summary
This summary is machine-generated.

Researchers developed untethered, 3D robots using novel manufacturing and actuation. These micro-robots offer complex geometries and heterogeneous materials for advanced applications in medicine and biology.

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Area of Science:

  • Robotics
  • Materials Science
  • Biomedical Engineering

Background:

  • Submillimeter robots are crucial for minimally invasive surgery and cellular manipulation.
  • Current limitations in materials and structures hinder the performance of micro-robots.

Purpose of the Study:

  • To develop untethered, terrestrial robots with complex 3D geometries and heterogeneous materials.
  • To overcome manufacturing and actuation constraints in micro-robotics.

Main Methods:

  • Utilized controlled mechanical buckling for 3D multimaterial structure fabrication.
  • Employed a one-way shape memory alloy and elastic shell for reversible deformations.
  • Implemented laser-induced thermal actuation for diverse locomotion modes.

Main Results:

  • Successfully created 3D multimaterial structures with diverse configurations.
  • Demonstrated reversible deformations enabling various movements like crawling, walking, and jumping.
  • Integrated photonic structures for wireless monitoring and localization.

Conclusions:

  • Advances in materials, manufacturing, and actuation enable sophisticated micro-robot capabilities.
  • These developments pave the way for untethered micro-robots in medicine and biology.
  • The study contributes to the growing field of micro-robotics technology.