MIT Researchers Develop Edible Batteries for Internal Medical Devices
Researchers at the Massachusetts Institute of Technology (MIT) have developed edible batteries designed to power internal medical devices. These batteries, made from magnesium and molybdenum trioxide, can generate a peak voltage of 1.84 volts and function within an animal's stomach for up to three days. The technology has been tested on pigs, where it successfully powered a wireless tag in the throat that communicated with a receiver 1.5 meters away. Additionally, it charged a capsule that electrically stimulated the stomach for 20 minutes, a method used to treat gut conditions affecting stomach emptying. The primary goal of this innovation is to support temporary internal devices, such as those tracking medication use or delivering electrical stimulation, without requiring surgical removal. The research team emphasizes that this system eliminates the need for retrieval procedures, reduces the risk of device retention, and minimizes electronic waste in the gastrointestinal tract, marking a significant step...