Fig. 3. Light-induced gel-sol phase change of SELP-CarHc hydrogels.
A. A red-colored 10% ACA and BCB hydrogel exposed to 30 klux of white light for 20 minutes showing gradual phase transition from gel to sol. B. A control gel; enzymatically crosslinked SELP-CarHc hydrogel was exposed to same light source for same time period. Grids are in mm.