A new fully polymeric conductive hydrogel sensor with IPN structure was developed, which achieved ultra-high stretchability, strong surface adhesion, and high sensing stability in response to both large and subtle human movements.
For a flexible electronic device integrating inorganic materials on a polymer substrate, the polymer can deform substantially, but the inorganic materials usually fracture at small strains. This paper describes an approach to make such a device highly stretchable. A polyimide substrate is first coated with a thin layer of an elastomer, on top of which SiNx islands are fabricated. When the substrate is stretched to a large strain, the SiNx islands remain intact. Calculations confirm that the elastomer reduces the strain in the SiNx islands by orders of magnitude.
Soft electronic devices have rapidly developed and gained increasing attention in the past few years. Herein, a conductive silk-based hydrogel is prepared by crosslinking regenerated silk fibroin (RSF) aqueous solution...
Transparent ionic conductive hydrogel sensor is fabricated by one-pot polymerization, which shows high stretchability and reliable sensitivity. Therefore, it can detect subtle human activities, such as pulse, speaking, and facial expressions.
A robust, highly stretchable supramolecular polymer conductive hydrogel with self-healability and thermo-processability