Extended Data Fig. 3: Wet adhesion chemistry of the bioadhesive and rapid sutureless integration to wet tissues.
From: 3D printable high-performance conducting polymer hydrogel for all-hydrogel bioelectronic interfaces

a, Schematic illustrations for physical crosslinking between the bioadhesive and the target tissue surface by hydrogen bonds. b, Schematic illustrations for covalent crosslinking between the bioadhesive and the target tissue surface by amide bonds. c, Snapshots of sutureless bioadhesive integration of the all-hydrogel bioelectronic interface to a rat sciatic nerve. d, Interfacial toughness of the bioadhesive hydrogel adhered to various rat tissues. Note that tissues underwent cohesive failure for sciatic nerve and spinal cord. Values in d represent the mean and the standard deviation (n = 3; independent experiments).