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a) The schematic demonstration of the bioprinting process using photo-crosslinkable OPF polymer and gelatin chains with cells. b) Mechanism of thermos-responsive gelatin chains to form coils with reversible triple-helix. c) After bioprinting, the scaffolds were crosslinked under UV irradiation followed by the production of micro-pores through the dissolution of gelatin coils by washing in media at 37 °C.
