Chemistry / Scanning Electron Microscopy / Transmission Electron Microscopy / Confocal Microscopy / Cercopithecus aethiops / Humans / Animals / Nanotubes / Iron Oxide / CHEMICAL SCIENCES / X ray diffraction / HeLa cells / Drug Carriers / Ferric Compounds / Vero cells / Humans / Animals / Nanotubes / Iron Oxide / CHEMICAL SCIENCES / X ray diffraction / HeLa cells / Drug Carriers / Ferric Compounds / Vero cells