Fig. 6

Schematic diagram of iron based biomaterials for tumor immunotherapy. A Fe3O4 NPs and Fe3O4OVA nanocomposite. (a) Fe3O4 OVA vaccine strategy schematic. (b) Schematic diagram of Fe3O4 OVA vaccine synthesis. B Vaccines for the treatment and prevention of subcutaneous B16-OVA tumors. (a) Schematic diagram of the subcutaneous B16-OVA tumor suppression experimental process. (b) Average tumor growth kinetics, volume and weight at 24 days in the control group and the treatment group. (c) Individual tumor growth kinetics for 24 days. (Reproduced with permission from [154] Copyright © 2019, Elsevier)