Fig. 4From: Tannic acid-functionalized 3D porous nanofiber sponge for antibiotic-free wound healing with enhanced hemostasis, antibacterial, and antioxidant propertiesIn vitro coagulation performance. a The clotting images. b HC in blood clots and c ACblood of different samples. d, e SEM images of the interactions between nanofiber surfaces and blood cells; d, while blood cells; e, red blood cellsBack to article page