If something needs fixing, you put a patch on it.  These days, that means fixing a medical condition.  Patches are used to deliver medicine--but there's a problem.  The skin is an effective barrier, permitting only small chemical compounds through.  That means many medications can't be used in a patch.
     Until now.  Stephen Hsu with Prometheon Pharma tells TV20's David Snyder how he made the breakthrough in the Innovation Technology interview.