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Self-Healing Hydrogel Bioelectronics.

Zhikang Li1,2,3, Jijian Lu1,2,3, Tian Ji1,2,3

  • 1State Key Laboratory for Manufacturing Systems Engineering, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies, Xi'an, 710049, China.

Advanced Materials (Deerfield Beach, Fla.)
|November 21, 2023
PubMed
Summary
This summary is machine-generated.

Self-healing hydrogels offer enhanced durability for soft bioelectronics by repairing mechanical damage. This review explores their mechanisms, materials, and applications in devices like sensors and supercapacitors.

Keywords:
flexible TENGsflexible supercapacitorsimplantable bioelectronicsself‐healing hydrogelsself‐healing mechanismssoft display deviceswearable sensors

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Area of Science:

  • Materials Science and Engineering
  • Biomedical Engineering
  • Soft Electronics

Background:

  • Hydrogels are promising for bioelectronics due to their biocompatibility and tunable properties.
  • Mechanical vulnerability limits the durability and longevity of conventional hydrogel-based bioelectronics.
  • Self-healing hydrogels address this limitation by enabling autonomous repair of damage.

Purpose of the Study:

  • To review recent advancements in self-healing hydrogel materials and their bioelectronic applications.
  • To discuss self-healing mechanisms, material chemistry, and strategies for property enhancement.
  • To explore the design, fabrication, and diverse applications of self-healing hydrogel bioelectronics.

Main Methods:

  • Comprehensive literature review of self-healing hydrogel research.
  • Analysis of self-healing mechanisms (e.g., dynamic covalent bonds, supramolecular interactions).
  • Examination of material design strategies for improved mechanical and functional properties.

Main Results:

  • Detailed overview of various self-healing hydrogel chemistries and fabrication techniques.
  • Demonstration of self-healing hydrogels in advanced bioelectronic devices, including sensors, supercapacitors, and TENGs.
  • Highlighting the improved durability, reliability, and longevity of bioelectronics utilizing self-healing hydrogels.

Conclusions:

  • Self-healing hydrogels significantly enhance the performance and lifespan of bioelectronic devices.
  • Continued research is crucial to overcome existing challenges and unlock the full potential of these materials.
  • This review provides a roadmap for future development and application of self-healing hydrogel bioelectronics.