Photocuring 3d Printing of Hydrogels: Techniques, Materials And Applications in Tissue Engineering And Flexible Devices.

Photocuring 3D printing of hydrogels, with sophisticated, delicate structures and biocompatibility, have attracted significant attentions by researchers and possessed promising application in the fields of tissue engineering and flexible devices. After years of development, photocuring 3D printing technologies and hydrogel inks have made great progress. Herein, we review the techniques of photocuring 3D printing of hydrogels, including Direct Ink Writing (DIW), Stereolithography (SLA), Digital Light Processing (DLP), Continuous Liquid Interface Production (CLIP), Volumetric additive manufacturing (VAM) and Two Photon Polymerization (TPP). Furtherly, the raw materials for hydrogel inks (photocurable polymers, monomers, photoinitiators and additives) and applications in tissue engineering and flexible devices are also reviewed. At last, the current challenges and future perspectives of photocuring 3D printing of hydrogels are discussed. This article is protected by copyright. All rights reserved.