Synthesis of graphene/gold hybrid nanomaterials by poly(ethylene glycol) linkers

Herein, we report a simple approach for increasing the photothermal conversion eciency of Gold Rods (GRs) as a result of interaction between gold rod and graphene oxide. For preparation of these hybrid materials, gold rods were synthesized and modied using functionalized polyethylene glycol-triazine (PEG-T). Then functionalized gold rods (GR-P) were attached to Graphene Oxide (GO) sheets by - stacking. It was found that GR-P coating can improve the stability of GO in aqueous solutions. Moreover cellular experiments showed that GR-P coating on GO induce remarkably reduced cell toxicity. Gold rod-graphene oxide (GR-P-GO) hybrid materials hold great promise for application in various biomedical elds such as photothermal cancer therapy.