A tiny microchip from Oregon State University engineers is able to perform ECG and EEG signaling using very little external power. Rather than packing its own battery source, the chip harvests radio waves from other devices that are close by. These small, inexpensive chips can easily fit onto a bandage and allow for remote monitoring for areas like the heart. Pulse rate and atrial fibrillation can be gathered by the device. The EEG capability can be useful for patients with dementia or for physical therapy recordings for weight loss programs. Other applications include using the device in lie detection.
(Source: Oregon State University)