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Recent Advances in Conductive Composite Hydrogels for Electronic Skin Applications
Yiqing Yuan1, Yilong Zhang1, Haiyang Duan1
1Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Zhengzhou 450001, China.
Gels (Basel, Switzerland)
|October 28, 2025
Summary
Conductive composite hydrogels offer enhanced electronic skin (E-skin) performance by improving conductivity and mechanical strength. This review explores their potential for advanced wearable sensors and human-machine interfaces.
Area of Science:
- Materials Science
- Biomedical Engineering
- Wearable Technology
Background:
- Electronic skins (E-skins) utilize flexible sensors for real-time data collection.
- Hydrogel materials offer biocompatibility but suffer from poor conductivity and mechanical stability.
- Conductive composite hydrogels present a solution to overcome traditional hydrogel limitations.
Purpose of the Study:
- To review conductive composite hydrogels for wearable E-skin applications.
- To discuss material properties, preparation, and performance regulation.
- To explore applications in physiological monitoring and human-machine interaction.
Main Methods:
- Review of hydrogel matrix materials and conductive fillers.
- Analysis of performance regulation mechanisms in composite hydrogels.
- Survey of current applications in electrophysiological, motion, and interaction monitoring.
Main Results:
- Conductive composite hydrogels exhibit improved stretchability, self-healing, and tunable conductivity.
- These materials address key challenges in traditional hydrogels for E-skins.
- Significant progress has been made in applying these hydrogels to various wearable sensing tasks.
Conclusions:
- Conductive composite hydrogels are highly promising for advanced wearable E-skins.
- Further research is needed to address current challenges and optimize fabrication.
- This review provides references for developing practical hydrogel-based electronic skin applications.
