Direct functionalization of magnetic hollow spheres with (3-aminopropyl)triethoxysilane (APTES) for targeted drug delivery

Direct functionalization strategy has been employed to modify the surface of the magnetic hollow spheres with (3-Aminopropyl)triethoxysilane (APTES) for targeted drug delivery. Magnetic hollow spheres were characterized by XRD, BET, FE-SEM, VSM and FT-IR. Model drug camptothecin (CPT) has been used to evaluate drug loading and in vitro release.