American scientists have created a wireless pacemaker that dissolves in the body after the expiration of its service life.

The device is 0.25 millimeters thick and weighs less than half a gram. It works without a battery. Power is supplied from an external antenna via near field coupling. Sensors on the skin monitor body temperature, oxygen levels, respiration, muscle tone, physical activity, and the electrical activity of the heart. Based on these data, the stimulation mode is calculated. Information can be sent to the application and forwarded to the attending physician.