Highly stretchable hydrogels for UV curing based high-resolution multimaterial 3D printing.

Citation:

Zhang B, Li S, Hingorani H, Serjouei A, Larush L, Pawar AA, Goh WH, Sakhaei AH, Hashimoto M, Kowsari K, et al. Highly stretchable hydrogels for UV curing based high-resolution multimaterial 3D printing. J. Mater. Chem. BJournal of Materials Chemistry B: Materials for Biology and Medicine. 2018;6 (20) :3246 - 3253.

Date Published:

2018///

Abstract:

We report a method to prep. highly stretchable and UV curable hydrogels for high resoln. DLP based 3D printing. Hydrogel solns. were prepd. by mixing self-developed high-efficiency water-sol. TPO nanoparticles as the photoinitiator with an acrylamide-PEGDA (AP) based hydrogel precursor. The TPO nanoparticles make AP hydrogels UV curable, and thus compatible with the DLP based 3D printing technol. for the fabrication of complex hydrogel 3D structures with high-resoln. and high-fidelity (up to 7 μm). The AP hydrogel system ensures high stretchability, and the printed hydrogel sample can be stretched by more than 1300%, which is the most stretchable 3D printed hydrogel. The printed stretchable hydrogels show an excellent biocompatibility, which allows us to directly 3D print biostructures and tissues. The great optical clarity of the AP hydrogels offers the possibility of 3D printing contact lenses. More importantly, the AP hydrogels are capable of forming strong interfacial bonding with com. 3D printing elastomers, which allows us to directly 3D print hydrogel-elastomer hybrid structures such as a flexible electronic board with a conductive hydrogel circuit printed on an elastomer matrix. [on SciFinder(R)]

Notes:

CAPLUS AN 2018:707409(Journal; Online Computer File)