Safe use of nanotechnology in medicine is coming closer.
DNA nanorobots kill tumors by cutting off their blood supply

A completely new way to fight cancers might be the use of DNA nanorobots that effectively find tumors and induce clogging of the blood vessels that feed the tumors. Nanorobots were injected in laboratory animals, and caused cancers to shrink, acted specifically in the tumors, and did not spread into the brain where they might induce unwanted side-effects. Safe use of nanotechnology in medicine is approaching.

Read the full story: Arizona State University
Scientific publication: Nature Biotechnology