Movie S2.

Release of hMSCs from the CarHC hydrogel composed of ACA + BCB + AdoB12 induced by white light (halogen lamp, 22 klux). The gel (red) was immersed in PBS. The video was recorded for 5 min after exposing the gel to light. A fast-forward version (speed, ×15) is shown.

B12-dependent photoresponsive protein hydrogels for controlled stem cell/protein release

Ri Wang, Zhongguang Yang, Jiren Luo, I-Ming Hsing, and Fei Sun

PNAS. 2017. 114:5912-5917 DOI: 10.1073/pnas.1621350114