Got food allergies? You can now test your meal on the spot using a cell phone

Got food allergies? You can now test your meal on the spot using a cell phone: Scientists have developed a lightweight device called the iTube, which attaches to a common cell phone to detect allergens in food samples. The iTube attachment uses the cell phone's built-in camera, along with an accompanying smart-phone application that runs a test with the same high level of sensitivity a laboratory would.