Tiny Wireless Implant Detects Oxygen Deep Within the Body

Engineers have created a tiny wireless implant that can provide real-time measurements of tissue oxygen levels deep underneath the skin. The device, which is smaller than the average ladybug and powered by ultrasound waves, paves the way for the creation of a variety of miniaturized sensors that could track key biochemical markers in the body such as pH or carbon dioxide. These sensors could one day provide doctors with minimally invasive methods for monitoring the biochemistry inside functioning organs and tissues.