Extended Data Fig. 1: Phase-separation of electrical and mechanical phases in the BC-CPH ink.
From: 3D printable high-performance conducting polymer hydrogel for all-hydrogel bioelectronic interfaces
a-e, Macroscopic (left) and microscopic (right) images of hydrophilic polyurethane (PU) dissolved in ethanol-water mixed solvent with 90 v/v% (a), 70 v/v% (b), 50 v/v% (c), 30 v/v% (d), and 10 v/v% (e) ethanol concentrations. Green fluorescence corresponds to PU. f–j, Macroscopic (left) and microscopic (right) images of PEDOT:PSS dissolved in ethanol-water mixed solvent with 90 v/v% (f), 70 v/v% (g), 50 v/v% (h), 30 v/v% (i), and 10 v/v% (j) ethanol concentration. k, Macroscopic (left), confocal (middle), and bright-field (right) microscopic images of the BC-CPH ink in ethanol-water mixed solvent with 70 v/v% ethanol concentration. Green fluorescence corresponds to PU. FITC, fluorescein isothiocyanate. Each experiment was repeated independently 3 times.
