The Interdisciplinary Research Collaboration’s (IRC) Cancer in Sight blog series shares the latest thinking from the IRC in Targeted Delivery for Hard-to-Treat Cancers. Our monthly blogs bring insights, comment and opinion from scientists, engineers, clinicians and industry partners working to better target delivery of drugs for hard-to-treat cancers. The inaugural Cancer in Sight blog is written by George Malliaras, Prince Philip Professor of Technology and Director of the IRC programme at the University of Cambridge.