You have a drug. You know what you want it to do and where in the body you need it to go. But when you inject it into a patient, how can you make sure your drug does what you want, where you want, when you want it to? Daniel Kohane, MD, PhD, who runs the Laboratory of Biomaterials and Drug Delivery at Boston Children’s Hospital, has one potential solution. In the Proceedings of the National Academy of Sciences, Kohane; postdoctoral fellows LeLe Li, PhD, and Rong Tong, PhD; and Robert Langer, PhD, of Massachusetts Institute of Technology, describe a drug- targeting system that’s based on a combination of ultraviolet (UV) light and short, single strands of DNA called aptamers.
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