Usage of 3D-Printed Scaffolds Manufactured with Bio-Based Photopolymer Resin Via 3D DLP in Tissue Engineering

In this study, three-dimensional (3D) printed scaffolds were fabricated using a bio-based photopolymer resin derived from sustainable resources for tissue engineering applications. The resin consisted of a UV-curable bio-based fatty acid-based polyester acrylate, polyethylene glycol dimethacrylate, and a photoinitiator. To enhance porosity and biodegradability, coconut oil and poly(ethylene glycol) (PEG) were incorporated into the formulations. The curing behavior of different formulations was investigated by differential photocalorimetry (Photo-DSC), and it was observed that polyethylene glycol accelerated the curing process. The biocompatibility of the 3D printed scaffolds was evaluated using culture experiments with mouse fibroblast (L-929) cells. The obtained results demonstrate that the developed bio-based photopolymer resins have the potential to be a promising material for tissue engineering applications.