Fig. 8
From: Recent advances in 3D printable conductive hydrogel inks for neural engineering
Unconventional printing techniques for conductive hydrogels. a Electro-assisted printing via controlled electrochemical reactions: (i) printing mechanism and (ii) printing set-up with P/G-stat (potentiostat/galvanostat). Reproduced with permission from [232], copyright Springer Nature, 2022. b 3D co-axial printed chip for skin nerve regeneration in wound: (i) ink materials and preparation, (ii) co-axial printing of core–shell microfiber. Reproduced with permission from [217], copyright John Wiley and Sons, 2020