Though chemotherapy works against many cancers, the side effects, such as nausea, temporary hair loss, and blood disease, can be huge. Looking to deliver cancer drugs only to cancer cells, scientists from the University of Florida have found a way to fill tiny carbon nanotubes with drugs and “cork” the tubes. After injection into the body, these tiny test tubes will seek out diseased cells, uncork, and deliver the drugs to the right place. Each tube is about 80 nanometers in diameter and can hold 5 million drug molecules, which definitely packs a punch.