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Related Experiment Video

Updated: Nov 19, 2025

An Additive Manufacturing Technique for the Facile and Rapid Fabrication of Hydrogel-based Micromachines with Magnetically Responsive Components
08:17

An Additive Manufacturing Technique for the Facile and Rapid Fabrication of Hydrogel-based Micromachines with Magnetically Responsive Components

Published on: July 18, 2018

7.4K

Recent progress on hydrogel actuators.

Feng-Mei Cheng1, Hong-Xu Chen1, Hai-Dong Li1

  • 1Key Laboratory of Yarn Materials Forming and Composite Processing Technology of Zhejiang Province, Jiaxing University, Jiaxing, 314001, P. R. China. hdlipr@mail.zjxu.edu.cn.

Journal of Materials Chemistry. B
|February 2, 2021
PubMed
Summary
This summary is machine-generated.

This review explores advanced fabrication methods for smart hydrogel actuators, enabling precise control over their shape-changing abilities for biomimetic applications.

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Area of Science:

  • Materials Science
  • Polymer Science
  • Robotics

Background:

  • Hydrogels are smart materials that exhibit volume and shape changes in response to external stimuli.
  • Developing biomimetic motions requires integrating hydrogels with diverse properties, heterogeneity, and periodicity.
  • Controlled fabrication of hydrogel structures is essential for predictable actuation pathways.

Purpose of the Study:

  • To review and analyze recent advancements in hydrogel actuator fabrication methods.
  • To compare the advantages and limitations of various fabrication techniques.
  • To provide insights into future research directions for hydrogel actuators.

Main Methods:

  • Sequential synthesis
  • Macroscopic supramolecular assembling
  • Field-induced alignment
  • Photolithography
  • Ionoprinting
  • 3D printing
  • Gradient structuring

Main Results:

  • A comprehensive overview of diverse hydrogel actuator fabrication techniques is presented.
  • Comparative analysis of the strengths and weaknesses of each method is provided.
  • Key challenges and opportunities in the field are highlighted.

Conclusions:

  • Fabrication method selection is critical for achieving specific hydrogel actuator functions.
  • Further research is needed to overcome limitations and enhance the capabilities of hydrogel actuators.
  • The reviewed methods pave the way for advanced, biomimetic soft robotic systems.