Fig. 1: Liquid-in-liquid 3D printing of hydrogels with tunable morphology, mechanical properties and conductivity.
From: Liquid-in-liquid printing of 3D and mechanically tunable conductive hydrogels
a Schematic of the 3D printing of PEDOT:PSS-based aqueous threads in an oil. PEDOT:PSS–PDMS surfactants self-assemble at the liquid-liquid interface, forming an elastic wall that allows the liquid ink architecture to maintain integrity for the subsequent treatments. b Schematic of the soft PEDOT device for wireless sensing and simulation. c Photographic images showing the liquid-in-liquid 3D print with and without interfacial PPSs assembly. The scale bar is 3 mm. d Photographic images showing the cured hydrogels with different stiffnesses. The scale bar is 3 mm. e The combination of high elasticity and conductivity of the hydrogel allows effective current transmission under arbitrary deformation. The scale bar is 1 cm.
