Good news for people fearful of needles and squeamish of shots: Scientists at the 238th National Meeting of the American Chemical Society report the design of a painless patch that may someday render hypodermic needles — as well as annual flu shots — a thing of the past. Lined with tiny "microneedles," these patches could make treatment of diabetes and a wide range of other diseases safer, more effective and less painful. Used as tiny hypodermic needles, they could improve treatment of macular degeneration and other diseases of the eye. "It's our goal to get rid of the need for hypodermic needles in many cases and replace them with a patch that can be painlessly and simply applied by a patient," says Mark Prausnitz, Ph.D. "If you can move to something that's as easy to apply as a band-aid, you've now opened the door for people to self-administer their medicine without special training."
Read the rest at http://esciencenews.com/articles/2009/08/19/painless.microneedle.patch.may.take.sting.out.shots