Vat Photopolymerization 3D Printing of Hydrogels with Re-Adjustable Swelling.

ABSTRACT: Vat photopolymerization typically prints highly crosslinked networks. Printing hydrogels, which are also networks but with a high swelling capacity in water and therefore with low crosslinking density, is a challenge for this technique. However, it may be of interest in medicine and in other areas, since it would allow for the preparation of this type of 3D-shaped material. In this work, an approach for printing hydrogels via vat photopolymerization that uses a mixture of stable and hydrolysable crosslinkers has been evaluated so that an initial highly crosslinked network can be printed, although after hydrolysis it becomes a network with low crosslinking. This approach has been studied with PEO/PEG-related formulations, that is, with a PEG-dimethacrylate as a stable crosslinker, a PEO-rel

SUBMITTER: Liz-Basteiro P 

PROVIDER: S-EPMC10452991 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature