A schematic of the synthesis of C3G-loaded ferritin nanoparticles. (A) Structure of recombinant H-2 subunit ferritin (rH-2). (B) Chemical structure of C3G. (C) Ferritin dissociated
into subunits due to low pH (2.0), followed by incubation with C3G. (D) The formation of C3G-loaded ferritin nanoparticles upon increasing pH of the mixture to 7.5