Via Nanodot, a link to the American Academy of Nanomedicine, "a professional, academic and medical society dedicated to advancing research in nanomedicine." The Academy publishes the Nanomedicine journal; you'll find a range of most interesting medical science within the latest issue: "First, we describe naturally occurring DNA repair nanomachines, using as an example the nanomachine that executes the nonhomologous end-joining (NHEJ) reaction for DNA double-strand break (DSB) repair. Second, we discuss therapeutic benefits that may be derived from the ability to modify the behavior of naturally occurring nanomachines, using as an example the concept of delaying DSB repair in rapidly dividing cancer cells to increase their natural sensitivity to radiation therapy. Third, we discuss similarities in the overall size, shape, and design of different nanomachines that manipulate DNA and RNA, and the possibility of developing nanomachines with new specificities not found in nature." Engineering better DNA repair would be a very big deal.