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. Author manuscript; available in PMC: 2023 Apr 29.
Published in final edited form as: Nat Biomed Eng. 2022 Oct 3;7(4):520–532. doi: 10.1038/s41551-022-00941-y

Fig. 1 |. Overview of the large-scale modular NET technology.

Fig. 1 |

a, Left: a micro-CT scan of an implanted NET array in a rat brain consisting of 8 128-channel modules (1,024 channels in total) at high 3D density. The purple cube highlights the NET array. Right: schematics of the 3D NET array embedded in cortical tissues. b, Images of the three types of NET arrays used in the study. c, Photos of a 128-channel type-I NET module. Red dotted box highlights the released front end. Inset: 8-shank, 128-channel flexible section immersed in water. d, Schematics showing assembled NET modules (each containing 8 × 16 intracortical recording sites) implanted sequentially into the brain using a pair of stereotaxic micromanipulators, one module at a time. e, A micro-CT scan showing the volumetric distribution of an 8 × 8 × 16 (1,024-channel) NET array in a mouse visual cortex. The targeted module-to-module spacing is 150 μm. Scale bars, 50 μm (b), 500 μm (c) and 500 μm (e).