Injectable and mechanically robust 4-arm PPO–PEO/graphene oxide composite hydrogels for biomedical applications†
Abstract
Graphene-based nanomaterials with different oxidation degrees were incorporated into Tetronic–tyramine (Tet–TA) hydrogels via enzymatic cross-linking. The molecular oxidation of graphene in combination with amphiphilic Tet–TA significantly improved the water dispersibility of graphene oxide (GO), resulting in a significant reinforcement of Tet–TA/GO composite hydrogels that can be used as an injectable biomaterial platform.