Figure 1.

Preparation and characterization of highly elastic, visible-light cross-linked, single-network, biodegradable hydrogel for cell printing. An acrylated PCL–PEG–PCL triblock polymer was synthesized and then cross-linked using visible light to form a highly elastic single-network biodegradable hydrogel. The hydrogel has attractive mechanical properties, and it is stretchable, compressible, and twistable. The hydrogel can also be bioprinted with various human cells and form complex patterns upon visible-light exposure.