Versatile ionic gelatin-glycerol hydrogel for soft sensing applications: The sensing device is inexpensive and easy to manufacture, is self-healable at room temperature, can undergo strains of up to 454%, presents stability over long periods of time, and is biocompatible and biodegradable. This material is ideal for strain sensing applications, with a linear correlation coefficient R2 = 0.9971 and a pressure-insensitive conduction mechanism. The experimental results show the applicability of ionic hydrogels for wearable devices and soft robotic technologies for strain, humidity and temperature sensing while being able to partially self-heal at room temperature.
- David Hardman
- Thomas George Thuruthel
- Fumiya Iida
