based on double crosslinking, first by in situ Ca2+ crosslinking and post-printing by chemical
crosslinking with 1, 4-butanediol diglycidyl ether (BDDE). Scaffolds were successfully
printed from 1% nanocellulose hydrogels, with their mechanical strength being tunable in
the range of 3 to 8 kPa. Cell tests suggest that the 3D-printed and BDDE-crosslinked
nanocellulose hydrogel scaffolds supported fibroblast cells' proliferation, which was …