Researchers from Washington State University developed a non-toxic treatment that targets lung cancer cells at the nanoscale level. It is made from organic molecules called peptoids. Nanotubes thinner than hair containing the peptoids and fluorescent dyes are delivered directly to the cells where they release reactive oxygen species that attack the cancer. Scientists are able to track how well the treatment works by using the dye inside of the tube. So far tests have shown that this method could reduce the need for chemotherapy. These are the first cancer-fighting nanomaterials that are not toxic to the body and can reveal their own effectiveness.