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Related Concept Videos

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  3. Research Domains
  5. Engineering
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  11. Triple-dynamic-bond-engineered Self-healing Conductive Hydrogels For Deformation-immune Flexible Supercapacitors And Wearable Epidermal Sensors.
  1. Home
  3. Research Domains
  5. Engineering
  7. Materials Engineering
  9. Wearable Materials
  11. Triple-dynamic-bond-engineered Self-healing Conductive Hydrogels For Deformation-immune Flexible Supercapacitors And Wearable Epidermal Sensors.

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Triple-Dynamic-Bond-Engineered Self-Healing Conductive Hydrogels for Deformation-Immune Flexible Supercapacitors and Wearable Epidermal Sensors.

Lixia Liao1,2, Jiaqi Ding1, Xiao Xiong1

  • 1School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China.

Biomacromolecules
|December 8, 2025

View abstract on PubMed

Summary
This summary is machine-generated.

This study presents a self-healing, conductive hydrogel for flexible electronics. The material demonstrates excellent performance in flexible supercapacitors and wearable sensors, offering a sustainable alternative.

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Nanotechnology

Background:

  • Flexible electronics require advanced materials with integrated conductivity, mechanical strength, and biocompatibility.
  • Current conductive hydrogels face challenges in achieving all desired properties for applications like flexible supercapacitors and wearable sensors.
  • Developing environmentally stable and degradable materials is crucial for sustainable electronic devices.

Purpose of the Study:

  • To develop a self-healing conductive hydrogel with enhanced mechanical properties, conductivity, and electrochemical performance.
  • To investigate the potential of polydopamine-coated MXene (MP) integration for improved hydrogel characteristics.
  • To evaluate the hydrogel's performance in flexible supercapacitors (FSCs) and as a wearable strain sensor, while considering its environmental degradability.

Main Methods:

  • Constructed a self-healing hydrogel utilizing synergistic dynamic bonds: borate ester, Schiff base, and hydrogen bonds.
  • Incorporated polydopamine-coated MXene (MP) to enhance mechanical strength, conductivity, and introduce antibacterial/antioxidant properties.
  • Fabricated and tested flexible supercapacitors (FSCs) and strain sensors using the developed hydrogel electrolyte.

Main Results:

  • The hydrogel exhibited excellent electrochemical performance in FSCs, achieving a specific capacitance of 373.41 mF/cm², energy density of 74.67 μWh/cm², and 82.43% capacitance retention after 5000 cycles.
  • The strain sensor demonstrated high sensitivity (gauge factor = 1.73) and repeatability, effectively detecting both large human motions and subtle physiological signals like microexpressions and pulse beats.
  • The hydrogel showed notable degradability due to its chitosan framework and reversible dynamic bonds, addressing environmental concerns associated with traditional electronics.

Conclusions:

  • The developed self-healing conductive hydrogel, enhanced with MP, offers a promising solution for high-performance flexible electronics, including FSCs and wearable sensors.
  • The material's combination of mechanical robustness, conductivity, self-healing capability, and biodegradability makes it suitable for advanced, sustainable wearable devices.
  • This research paves the way for next-generation flexible electronic systems that are both high-performing and environmentally conscious.