Metal NanoparticlesSilverGoldNanoparticlesGreen Chemistry TechnologyNanotechnologySurface Plasmon ResonanceMetalsMagnetite NanoparticlesParticle SizeDrug CarriersNanocapsulesDrug Delivery SystemsPolyglycolic AcidNanomedicineChitosanFerric CompoundsNanostructuresMicroscopy, Electron, TransmissionSilicon DioxideZinc OxideMagneticsPolymersSurface PropertiesCeriumNanoconjugatesPolyethylene Glycols