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Related Experiment Video

Updated: Jul 10, 2026

An Additive Manufacturing Technique for the Facile and Rapid Fabrication of Hydrogel-based Micromachines with Magnetically Responsive Components
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Microgel-templated cluster-crosslinked hydrogels for low-hysteresis soft electronics.

Mingning Zhu1, Shuo Sun2, Qiangwei Wang3

  • 1School of Biomedical Engineering, Guangdong Medical University, Dongguan 523808, PR China; Key Laboratory of Medical Electronics and Medical Imaging Equipment, Dongguan 523808, PR China; Songshan Lake Innovation Center of Medicine & Engineering, Guangdong Medical University, Dongguan 523808, PR China.

Journal of Colloid and Interface Science
|July 8, 2026
PubMed
Summary

This study introduces a novel microgel-assisted nanocomposite hydrogel with a unique "sea-island" structure. This advanced material offers exceptional mechanical properties and stable conductivity for high-fidelity sensing applications.

Keywords:
Low-hysteresisMicrogel-templated cluster-crosslinkedNanocomposited hydrogelsSoft electronics

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Nanotechnology

Background:

  • Conventional conductive hydrogels struggle with balancing mechanical toughness, low hysteresis, and fatigue resistance.
  • Developing advanced materials for robust and sensitive electronic applications remains a significant challenge.

Purpose of the Study:

  • To develop a novel nanocomposite hydrogel with a heterogeneous "sea-island" architecture.
  • To enhance mechanical properties like toughness and fatigue resistance while maintaining low hysteresis.
  • To integrate stable conductivity for advanced sensing capabilities.

Main Methods:

  • Fabrication of nanocomposite hydrogels using a microgel-assisted strategy with "sea-island" architecture.
  • Utilizing amphiphilic poly(ethyl acrylate-methacrylic acid-divinylbenzene) (PEA-MAA-DVB) microgels as nanoreservoirs for trimethylolpropane trimethacrylate (TMPTMA).
  • Incorporating PEDOT:PSS for stable conductivity and strain-sensitive resistance.

Main Results:

  • Achieved high stretchability (1250%), high toughness (1201 kJ/m³), low hysteresis (<5.0%), and outstanding fatigue resistance.
  • Demonstrated dual-mode tensile and compressive sensing capabilities.
  • Successfully applied as a respiratory sensor and in a machine learning-enabled electronic skin with 93.4% accuracy for electromyography signals.

Conclusions:

  • The developed hydrogel platform offers a versatile and scalable solution for integrating mechanical durability with high-fidelity sensing.
  • This material shows significant potential for intelligent healthcare monitoring and human-machine interaction systems.
  • The "sea-island" architecture effectively addresses limitations of conventional conductive hydrogels.