Dynamic Nanohybrid-Polysaccharide Hydrogels for Soft Wearable Strain Sensing

Electroconductive hydrogels with stimuli-free self-healing and self-recovery (SELF) properties high mechanical strength for wearable strain sensors is an area of intensive research activity at the moment. Most electroconductive hydrogels, however, consist static bonds dynamic SELF performance, presenting a challenge to improve both into one single hydrogel. An alternative strategy successfully incorporate system via use stiff or rigid, yet nano-materials. In this work, nano-hybrid modifier derived from nano-chitin coated ferric ions tannic acid (TA/Fe@ChNFs) blended starch/polyvinyl alcohol/polyacrylic (St/PVA/PAA) It hypothesized that TA/Fe@ChNFs nanohybrid imparts hydrogel catecholato-metal coordination bonds. Additionally, catechol groups TA provide mussel-inspired adhesion Due its electroconductivity, toughness, properties, self-adhesiveness, prototype soft sensor created using subsequently tested.