Tithonia diversifolia pectin – reduced graphene oxide and its cytotoxic activity

• Graphene oxide was reduced by pectin from Tithonia diversifolia.
• The reduction of the graphene oxide was confirmed by various characterization methods.
• Cytotoxicity of GO and TDP-rGO to RD and LU-1 cells was evaluated

Reduced graphene oxide was one-pot synthesized from graphene oxide using pectin from Tithonia diversifolia as a reducing and stabilizing agent. The success of the process was confirmed by UV–vis, FT-IR, XRD spectroscopy. The TEM and AFM images showed the structure of few-layer graphene nanosheets with the dimension of hundreds nm and the thickness about 2.5 nm. The cytotoxic tests revealed that the reduction process of graphene oxide using pectin led to a lower cytotoxicity.