The Combined Drug (IMAGE) Sechenov University Caption The combined drug: a nanocrystal with inserted radioactive atoms with the targeting molecule (green) and the toxic poison (yellow) on its surface. Credit Evgeny Pchelkin Usage Restrictions image may only be used with the credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.