Nifty Science: a nano-sized submarine to deliver your prescriptions?

A SINGLE MOLECULE SUBMARINE DOES HOME DELIVERY INSIDE YOUR BODY ?

We seniors have certainly benefited from the super advances in drug therapies that have been developed since WW II. Probably all of us are taking one or more on a daily basis for any number of medical conditions. I think though that much of what we may take for, for example, some cancers is a rather blunt instrument. One goal of drug therapy would be to specifically target the site at which the drug should work. How to do that? In a report I read today, scientists at  Rice University have developed a phenomenal 'nanosubmarine,' a single molecule, comprising 244 atoms, that is driven by a kind of propeller (actually a flagella such as is found on some bacteria and other protozoan organisms). The nanosubmarines could conceivably be loaded with medicine and sent up a person's bloodstream for precision delivery, or made to ferry toxic chemicals out of water filters. The paper describing the molecular machine appeared in the journal Nano Letters and was reported by NBC news. It is indeed a brave new world in which we live!