By WILLIAM COLE FOR MAILONLINE PUBLISHED: 06:19 EDT, 31 May 2021 | UPDATED: 15:30 EDT, 31 May 2021 Researchers have successfully tested a new drug which can kill cancer cells without damaging nearby healthy tissue – removing the need for chemotherapy. Scientists at the University of Edinburgh combined the tiny cancer-killing molecule called SeNBD with a chemical food to trick the...