A notable feature of some modern electronic devices is the ability to remain physically unchanged almost indefinitely. Though this is usually a positive, the opposite case, the appliance ‘disintegrate’ with the passage of time may also have advantages. Scientists several universities in the United States and Asia have created a circuit that can disappear after a certain period.The device, presented in the journal Science , could be used to create medical implants, after serving their function, are reabsorbed by the body. To elaborate, researchers have used silk cocoons, thin sheets of porous silicon and magnesium electrodes -all-degradable materials and tested it in mice as biomedical implants. before deploying, he was scheduled to be reabsorbed after a specific amount of exposure to animal biofluids.
After three weeks, in which the device did its job managing a bactericidal, scientists found that there were only small remnants of the implant. John Rogers, one of the researchers involved in the project, explained to SINC that another possible medical application of these circuits, the healing of broken bones: “It has been shown that electrical stimulation accelerates growth and healing of bone fractures, and a temporary device like this is an interesting opportunity in this regard”. The scientist says that in “a year or two could start to be tested on humans”, but clarified that his focus at the moment are the animal models. But the possible uses of these circuits beyond medicine. According to Rogers, a possible application would be the environmental monitoring: “Imagine the deployment of 100,000 electronic sensors with wireless communication capabilities in a chemical spill. Could provide useful information and simply disappear after elimination of the discharge “. “They could also simplify the management of consumer electronic waste. Current consumer technology usually become obsolete in two or three years and discarded, so it would be interesting to use these devices degradable reduce environmental impact, “concludes the researcher.