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Related Experiment Video

Updated: Sep 28, 2025

Rod-based Fabrication of Customizable Soft Robotic Pneumatic Gripper Devices for Delicate Tissue Manipulation
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Small-scale soft grippers with environmentally responsive logic gates.

Xuan Zhang1, Ya Wu1, Yan Li1

  • 1MOE Key Laboratory of Materials Physics and Chemistry in Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China. zhangxuan@nwpu.edu.cn.

Materials Horizons
|April 5, 2022
PubMed
Summary
This summary is machine-generated.

Researchers developed electronic-free, origami-inspired soft grippers using stimuli-responsive hydrogels. These grippers perform logic gate computations for intelligent control in confined spaces without external power or tethering.

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Area of Science:

  • Materials Science
  • Robotics
  • Biotechnology

Background:

  • Small-scale soft grippers are crucial for confined environments like the human body.
  • Integrating electronics and power for intelligent control in small soft grippers is challenging.
  • Existing soft grippers often lack on-board computational capabilities.

Purpose of the Study:

  • To develop a method for adding computational capabilities to small-scale soft grippers without electronics.
  • To create soft grippers that can perform logic gate operations using environmentally responsive materials.
  • To enable autonomous perception, control, and computation in soft robots.

Main Methods:

  • Utilized stimuli-responsive hydrogels as building blocks for origami-inspired soft grippers.
  • Designed grippers to perform various logic gate functions (YES, NOT, XOR, AND, OR, NOR, NAND) based on hydrogel size changes.
  • Integrated dual-responsive hydrogels for autonomous switching between logic gates and developed a magnetic gripper for targeted object manipulation.

Main Results:

  • Successfully fabricated origami-inspired soft grippers capable of performing multiple logic gate operations.
  • Demonstrated autonomous switching between AND and OR logic gates using dual-responsive hydrogels.
  • Developed a magnetic gripper with an AND gate for stimulus analysis and targeted object capture/release.

Conclusions:

  • Environmentally responsive logic gates offer a viable, electronics-free approach to computational capabilities in small-scale soft robots.
  • This strategy enables on-board perception, control, and computation, advancing the intelligence of soft machines.
  • The developed soft grippers are suitable for applications in confined environments requiring adaptive and intelligent manipulation.