Wireless Implant Eliminates Bacteria, Then Dissolves
Researchers at Tufts University and University of Illinois, Champaign-Urbana successfully delivered an antibiotic treatment to mice with a bacterial infection with what’s considered to be the first resorbable wireless electronic implant.
The wireless implant, made of silk and magnesium, delivered heat to infected tissue in the mice by a remote wireless signal. After the wireless treatment, the device harmlessly dissolved in the mice. This breakthrough research was recently published online the week ofNovember 24-28, 2014 in the Proceedings of the National Academy of Sciences.
Typically, implantable medical devices have used non-degradablematerials that have a limited lifespan which leads to frequent removal or replacement. But a new range of wireless therapy devices made from silk protein and other dissolvable substances are strong enough to survive mechanical handling during surgery as well as harmlessly dissolve within minutes or weeks.
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