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Self-Healing Hydrogel Bioelectronics
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DOI：10.1002/adma.202306350.png)
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Abstract
En 中文
Hydrogels have emerged as powerful building blocks to develop various soft bioelectronics because of their tissue-like mechanical properties, superior bio-compatibility, the ability to conduct both electrons and ions, and multiple stimuli-responsiveness. However, hydrogels are vulnerable to mechanical damage, which limits their usage in developing durable hydrogel-based bioelectronics. Self-healing hydrogels aim to endow bioelectronics with the property of repairing specific functions after mechanical failure, thus improving their durability, reliability, and longevity. This review discusses recent advances in self-healing hydrogels, from the self-healing mechanisms, material chemistry, and strategies for multiple properties improvement of hydrogel materials, to the design, fabrication, and applications of various hydrogel-based bioelectronics, including wearable physical and biochemical sensors, supercapacitors, flexible display devices, triboelectric nanogenerators (TENGs), implantable bioelectronics, etc. Furthermore, the persisting challenges hampering the development of self-healing hydrogel bioelectronics and their prospects are proposed. This review is expected to expedite the research and applications of self-healing hydrogels for various self-healing bioelectronics. Self-healing hydrogels (SHHs) can endow soft bioelectronics with skin-mimic function, i.e. repairing their physical, electrical and chemical properties after damage, which improves the device durability, reliability, and longevity. This review discusses recent advances in SHHs, from the self-healing mechanisms to a summary of various SHH-based bioelectronics, and proposes the challenges and prospects. It is expected to expedite the research and applications of SHHs for various self-healing bioelectronics. image .
Keywords:
self-healing hydrogels
self-healing mechanisms
wearable sensors
soft display devices
flexible supercapacitors
flexible TENGs
implantable bioelectronics
Journal
IF:
26.8
Papers:
3.4W
Citations:
46.0W