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Keywords:

  • yellow fluorescent protein;
  • mechanophore;
  • impact damage;
  • polymer-protein hybrid material;
  • self-sensing fiber-reinforced composite
Thumbnail image of graphical abstract

Yellow fluorescent protein (YFP) is used as a mechanoresponsive layer at the fiber/resin interface in glass-fiber-reinforced composites. The protein loses its fluorescence when subjected to mechanical stress. Within the material, it reports interfacial shear debonding and barely visible impact damage by a transition from a fluorescent to a non-fluorescent state.