South Korean scientists are working on a health device in the form of a tattoo that could alert users to possible health problems.Researchers at the Korea Advanced Institute of Science and Technology (KAIST) have developed an electronic ink made of liquid metal and very small tubes of carbon, or carbon nanotubes.The ink works by creating something like an electric circuit on the skin.When the tattoo is connected to an electrocardiogram device or other biosensor, it can send a patient’s heart rate and other important health signs to a monitor.Steve Park is the leader of the research project.He said, "In the future, what we hope to do is connect a wireless chip integrated with this ink, so that we can communicate, or we can send signal back and forth between our body to an external device.”External device monitors could be located anywhere, including in patients’ homes.The electronic ink is much more comfortable for the user than existing biosensors, Park said.
