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Direct 4D printing of functionally graded hydrogel networks for biodegradable, untethered, and multimorphic soft robots

  • Yonsei University
  • Virginia Polytechnic Institute and State University

Research output: Contribution to journalArticlepeer-review

Abstract

Highlights The binder jetting method for the 4D printing of soft robots has been developed. Compositionally graded cross-linking agents gradually form stable porous network structures that enable programmable hygroscopic deformation. A multi-stimuli-responsive and untethered soft robot with stark stimulus selectivity has been developed using the systematic bed design incorporating additional functional agents. The biodegradability of the soft robot has been confirmed with degradation rates of 96.6% within 72 h.

Original languageEnglish
Article number025002
JournalInternational Journal of Extreme Manufacturing
Volume6
Issue number2
DOIs
StatePublished - Apr 2024

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 9 - Industry, Innovation, and Infrastructure
    SDG 9 Industry, Innovation, and Infrastructure

Keywords

  • biodegradable soft robotics
  • intelligent and sustainable additive manufacturing
  • multi-material four-dimensional printing
  • multi-stimuli-responsive soft robot
  • untethered soft robot

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