The researchers at the University of Illinois at Urbana-Champaign have succeeded in implanting wireless biodegradable circuits in the brains of rats that monitor the temperature and pressure of the brain and eventually dissolve without the need for removal. They used nanoscale films hundreds of times smaller than the diameter of a hair that naturally dissolve when immersed in liquid.
“There are already implantable devices that transmit wireless data. The novelty of this apparatus is that all the elements are biodegradable,”notes Josep, but warns that biodegradability affects the quality of the data, which worsens as the device degrades.
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