Smartphone cradle, app detect toxins, bacteria

Kenny Long, a graduate researcher studying engineering and medicine at the University of Illinois, Urbana-Champaign works with a handheld biosensor based on an iPhone, is shown in this June 21, 2013 photo in Urbana, Ill. (AP Photo/Michael Conroy)URBANA, Ill. (AP) — Afraid there may be peanuts or other allergens hiding in that cookie? Thanks to a cradle and app that turn your smartphone into a handheld biosensor, you may soon be able to run on-the-spot tests for food safety, environmental toxins, medical diagnostics and more.