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Preparation of GelMA/PEDOT:PSS hydrogels. (a) Schematic of GelMA preparation. (b) Preparation of PEDOT:PSS before mixing with GelMA precursor solution. (c) Photopolymerization of the precursor solutions to produce crosslinked hydrogel network. (d) Representative images of crosslinked hydrogels at varying concentration of PEDOT:PSS, including 0, 0.1, and 0.3%.
