In Vitro Sustained Release Study of Gallic Acid Coated with Magnetite-PEG and Magnetite-PVA for Drug Delivery System

Figure 1

XRD patterns of FNPs (A), FPVAG (B), and FPEGG (C). The inset shows the XRD patterns of pure PEG (D), pure PVA (E), and pure GA (F). FPEGG: iron oxide coated with polyethylene glycol and gallic acid, FPVAG: iron oxide coated with polyvinyl alcohol and gallic acid, PEG: pure polyethylene glycol, PVA: pure polyvinyl alcohol, and GA: pure drug gallic acid.