South Korea Develops World’s First Cancer-Treating Nanorobot

South Korean scientists say it will soon be possible to treat cancer with nanorobots as a more efficient, less harmful alternative to chemotherapy. They have genetically modified non-toxic salmonella bacteria to deliver microscopic capsules filled with drugs, directly to cancer tumors. The bacteria are drawn to the tumors by the chemicals secreted by cancer cells. Once the bacteria arrive, the capsules release their drugs, attacking the tumor while leaving healthy cells alone.