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Keywords:

  • direct-write assembly;
  • microvascular networks;
  • self-healing
Thumbnail image of graphical abstract

Interpenetrating microvascular networks are embedded in an epoxy substrate via direct-write assembly. Each network is filled with one component of a two-part epoxy resin. This novel epoxy coating/substrate architecture enables repeated healing of at least 30 cycles of mechanical damage in the coating by independently supplying both healing agents to the damaged region(s).