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Keywords:

  • stimuli-responsive materials;
  • self-healing materials;
  • microelectronics;
  • electrical conductivity
Thumbnail image of graphical abstract

Self-healing of an electrical circuit is demonstrated with nearly full recovery of conductance less than one millisecond after damage. Crack damage breaks a conductive pathway in a multilayer device, interrupting electron transport and simultaneously rupturing adjacent microcapsules containing gallium–indium liquid metal (top). The released liquid metal flows to the area of damage, restoring the conductive pathway (bottom).