Traceless photopolymerization by red light: upon red-light irradiation, polymerization starts and, at the same time, the sensitizer permanently photobleaches, resulting in a colorless (“traceless”) crosslinked hydrogel.
Traceless photopolymerization by red light: upon red-light irradiation, polymerization starts and, at the same time, the sensitizer permanently photobleaches, resulting in a colorless (“traceless”) crosslinked hydrogel.