Autonomous nanobots repairing circuits without code

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Scientists have built autonomous nanobots powered only by chemical energy that can "sense" their environment and repair broken circuits too small for a human eye to see.
Such tiny repairs could help modern electronics have a longer shelf life, but these proof-of-concept, autonomous nanobots have bigger potential. They could one day soon be used for self-healing materials and delivering drugs inside the human body.
To build them, scientists took inspiration from nature. When you cut yourself, the platelets in your blood sense the wound and start aggregating to start the healing process. They wanted to create tiny robots that could do something similar, starting with Janus particles made of gold and platinum.

http://qz.com/649655/these-tiny-autonomous-robots-dont-need-computer-programs-to-repair-circuits/
 
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