Tannic Acid‐Enhanced PVA /Sodium Alginate Dual‐Network Hydrogel for Wearable Strain Sensors
This work presents the design and fabrication of a conductive dual‐network hydrogel for flexible strain sensing applications. The hydrogel is constructed from two interpenetrating networks: the first formed by hydrogen‐bonded tannic acid (TA) and polyvinyl alcohol (PVA), and the second created via Ca 2+ ‐mediated...