Release date: 2007-08-10
In a groundbreaking development, German researchers have found a way to harness body heat to power small medical devices. By utilizing the temperature difference between the human body and the surrounding environment, they’ve created a method that could potentially eliminate the need for traditional batteries in certain electronic systems. This innovation opens up new possibilities for wearable and implantable medical technology.
According to the project leader, the approach relies on semiconductors that convert thermal energy into electricity. The underlying principle is based on the "Seebeck effect," a phenomenon where a voltage is generated when two different metals are joined in a circuit and exposed to varying temperatures. This effect has long been known, but applying it effectively in a biological setting presents unique challenges.
One of the main obstacles is the limited temperature difference between the human body and the outside world, which typically results in a very low voltage—around 200 millivolts. This level is far too weak to power conventional electronic devices. However, German scientists have developed an innovative technique to overcome this limitation, enabling certain micro-devices to function efficiently even at such low voltages. While the exact details of the method remain undisclosed, the potential applications are promising.
The technology could be particularly useful for powering micro-medical equipment, such as sensors used in monitoring patients with severe conditions. These devices could operate continuously without the need for frequent battery changes, improving patient comfort and reducing maintenance costs. As research in this field continues, we may see more advancements that bring us closer to self-powered medical solutions.
——China Medical Device Network
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