Figure 3.

FTIR spectra of the samples obtained after attaching chrysin on Fe₃O₄@PEG and Fe₃O₄@chitosan in different ratios: (A) Fe₃O₄@PEG250 with a 1:0.5 PEG-chrysin ratio; (B) Fe₃O₄@PEG500 with a 1:1 PEG-chrysin ratio; (C) Fe₃O₄@PEG1000 with a 1:2 PEG-chrysin ratio; (D) Fe₃O₄@Chitosan250 with a 1:0.5 chitosan-chrysin ratio; (E) Fe₃O₄@Chitosan500 with a 1:1 chitosan-chrysin ratio; (F) Fe₃O₄@Chitosan1000 with a 1:2 chitosan-chrysin ratio. The characteristic peaks in the spectra indicate that PEG and chitosan-coated magnetite NPs were successfully synthesized, and the chrysin drug was loaded into them.