Korean scientists reckon that the capacitive touchscreens on our phones and tablets could help diagnose diseases from what's floating around in your mouth. It works through the screen's ability to detect minute capacitive differences in disease-carrying liquids placed on its surface. Experiments by Hyun Gyu Park and Byoung Yeon Won at the Korea Advanced Institute for Science and Technology in Daejeon managed to detect chlamydia microbes in three different concentrations. Once again, the iPhone acted as medical chief, although the setup isn't yet able to distinguish between different bugs. There are also teething troub
