Biodegradable circuits come out to open up new paths for implanted medicine

Researchers at the University of Illinois at Urbana-Champaign and Tufts University have developed a water-soluble, fully functional circuit that opens the way for new types of medical implants.

According to a paper published today in the journal Science, researchers use magnesium and silicon-bonded materials to create conductive circuits, and then use a special type of wire to wrap the circuit. This special type of wire provides controllable The rate of degradation. Depending on the outer treatment, this circuit can last anywhere for a few minutes, up to several years.

The researchers implanted a miniature sensor created from a combination of magnesium and silicon into the body of the mouse to monitor bacterial growth at the incision. This sensor includes a 64 pixel imaging device, temperature sensor, and a solar cell.

In addition to medical applications, the technology can also be used to deal with environmental disasters, enabling scientists to deploy thousands of tiny, non-invasive sensors to monitor environmental disaster processing progress.

The project is funded by the Defense Advanced Research Projects Agency (DARPA), and the R&D team is currently working to expand capacity to mass production levels.

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