Ferromagnetic nanowires (NWs) encapsulated by a fine graphitic coating form vectors for nanorobotic drug delivery, as reported on page 823 by Salvador Pané and co-workers. The coating protects the NWs from degradation, reduces the possibility of toxicity from the NWs, and provides a platform for functionalization with therapeutic molecules. Fe NWs can be wirelessly manipulated with magnetic fields and field gradients. The nanorobots are functionalized with the model drug rhodamine B and are manipulated in a controlled way.
