Fig. 2From: Tannic acid-functionalized 3D porous nanofiber sponge for antibiotic-free wound healing with enhanced hemostasis, antibacterial, and antioxidant propertiesCharacterization of nanofiber sponges. a The water absorption rates of different samples. b Cyclic water absorption/desorption of 3D and 3D-TA1.0 nanofiber sponges. c The RRwater of different samples within 6Â h. d The comparison of DR of 3D and 3D-TA1.0. e The rebound rate of 3D and 3D-TA1.0.Back to article page