Sharpshooting nanoparticles hit the target

Multi stimuli-responsive nanocapsules selectively deliver drugs to exactly where they are needed, say researchers. The researchers created the multifunctional nanocapsules by wrapping magnetic iron oxide nanoparticles inside a biocompatible polymer coat that could be tuned to respond to acidity or temperature. The team has already shown that the nanoparticles can selectively deliver the toxic antitumor drug doxorubicin to cancer cells.