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Updated: Feb 10, 2026

Bioinspired Soft Robot with Incorporated Microelectrodes
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Bioinspired Structural Design Enables Synergistic Toughness and Conductivity in Hydrogels for Advanced Wearable

Yi Liu1, Xuchen Wang1, Junjie Wang1

  • 1Future Intelligent Wear Centre, School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.

Nano-Micro Letters
|February 9, 2026
PubMed
Summary

Researchers developed a robust, conductive hydrogel inspired by biological tissues. This material achieves high strength and conductivity, enabling advanced wearable electronics and sensors.

Keywords:
Bioinspired designConductive hydrogelGesture recognitionMechanical–electrical synergyWearable electronics

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Area of Science:

  • Materials Science
  • Biomaterials Engineering
  • Polymer Science

Background:

  • Conductive hydrogels are crucial for wearable sensors, bioelectronics, and soft robotics.
  • A key challenge is achieving both mechanical robustness and high conductivity simultaneously.
  • Existing materials often compromise one property for the other.

Purpose of the Study:

  • To develop a nanofiber-reinforced conductive hydrogel with enhanced mechanical and electrical properties.
  • To mimic biological vascular-neural networks for improved material architecture.
  • To enable advanced applications in wearable electronics and sensing.

Main Methods:

  • Composed poly(vinyl alcohol) (PVA), aramid nanofibers (ANFs), and in situ polymerized PEDOT:PSS.
  • Utilized solvent- and thermally induced structural reorganization to create a bi-continuous architecture.
  • Integrated the hydrogel with a convolutional neural network for gesture recognition.

Main Results:

  • Achieved a unique synergy of high tensile strength (10.72 MPa) and ultrahigh conductivity (452.75 S m⁻¹).
  • Demonstrated stable conduction under impact and complex deformation.
  • Successfully supported multimodal sensing, including joint motion and electrophysiological signals.
  • Attained 99.54% accuracy in recognizing five complex hand gestures using a CNN.

Conclusions:

  • The bioinspired strategy successfully created a mechanically robust and highly conductive hydrogel.
  • The developed hydrogel exhibits excellent biocompatibility and stable performance.
  • This work paves the way for next-generation intelligent wearable electronics.