Highly tough and responsible ionic liquid/polyvinyl alcohol-based hydrogels for stretchable electronics
Peer-Reviewed Publication
Updates every hour. Last Updated: 23-Jun-2025 01:10 ET (23-Jun-2025 05:10 GMT/UTC)
Conductive hydrogels from ionic liquids are widely used in soft electronics and solid electrolytes due to their high flexibility and conductivity. However, engineering such hydrogels with simultaneous biocompatibility, recyclability, excellent conductivity, stretchability, and toughness for different soft electronic applications remains challenging. This study presents a simple strategy to fabricate tough, biocompatible, and recyclable conductive hydrogels based on polyvinyl alcohol PVA and 1-butyl-3-methylimidazolium tetrafluoroborate for highly stretchable strain sensors and all-in-one supercapacitors. These hydrogels can also be recycled to make new strain sensors with consistent performance in terms of linear sensitivity, durability, and low hysteresis. This simple design concept opens up new avenues for the development of the next generation "green" wearable and implantable electronic devices.
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