Extended Data Fig. 1: Depth implantation of a 240-channel ki-MEA into a rat brain.
From: Flexible kirigami microelectrode arrays for neuronal activity recordings in non-human primate brains
a, A 1-mm-thick hydrogel film. Scale bar, 5 mm. b, A rat brain before and after the transferring of a pre-formed hydrogel film. Scale bars, 2 mm. c, The rat brain after the transferring of a 240-channel ki-MEA. Scale bar, 1 mm. d, The rat brain after the depth implantation of all the 24 spiral threads of the 240-channel ki-MEA. The implantation depth of the spiral threads was 2 mm. Scale bars, 1 mm and 500 µm (magnified view). e, Schematic showing the rat brain after the implantation of the 240-channel ki-MEA (top view).
