The problem with bandages is that they're not see-through, so you can't really tell if an injury is healing properly until you remove the bandage. But researchers at Swansea University are using 3D printing technology to change that. The research project, led by the Institute of Life Science (ILS) at Swansea, centers around a 3D printed smart bandage, which will use built-in nano-sized sensors and 5G wireless data to track the patient's activity levels and healing process, and then transmit that information back to the treating physician. While this is not the first 3D printed bandage we've seen, the research being conducted at the ILS is the first where the bandage itself actually transmits information back to the doctor. Read more at 3DPrint.com: http://3dprint.com/171465/3d-printed-smart-bandage/