Fig. 5
From: Recent advances in 3D printable conductive hydrogel inks for neural engineering
Neural tissue engineering applications of 3D printable conductive hydrogel ink. a Illustration of 3D printed biomimetic scaffolds using sulfonated lignin (LS)-doped PEDOT containing conductive hydrogel ink and transplantation to the spinal cord injury model. b Immunofluorescence staining exhibit that the 3D printed biomimetic scaffolds (i) inhibit the formation of glial scar and (ii) promote neuronal regeneration. Reproduced with permission from [215], copyright Elsevier, 2023