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Stretchable and self-healable hydrogel-based capacitance pressure and strain sensor for electronic skin systems
- Source :
- Materials Research Express. 6:0850b9
- Publication Year :
- 2019
- Publisher :
- IOP Publishing, 2019.
-
Abstract
- Developing stretchable and self-healable skin-like materials have received increasing research for their broad application in wearable sensors, artificial intelligence, and soft robotics. However, development of skin-like sensor that can combine superior stretchable and self-healing ability is still a challenge. In this work, we designed a tough and self-healing hydrogel by formation of the hydrogen bonds and dual metal-carboxylate coordination bonds among pectin, poly(acrylic acid) and metal ions. The reversible nature of dynamic coordination interactions endowing the hydrogel high stretchability (1214%), excellent recovery property as well as superior self-healing ability (94% healing efficiency in 2 h) without any assistance of external stimuli. The stretchable and self-healable capacitance sensors are based on the hydrogel can detect a large scale of pressures, monitor the multifarious human motions, mimic the function of self-healing and sensation properties of natural skins. This work provides excellent performance of pressure and strain sensors based on the stretchable and self-healable hydrogel, it shows great potential in the field of electronic skin systems.
Details
- ISSN :
- 20531591
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- Materials Research Express
- Accession number :
- edsair.doi...........cc033390705c0c2c7b045edf6413df25