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Keywords:

  • amorphous calcium carbonate;
  • calcite;
  • crustacean cuticle;
  • hydroxyapatite;
  • thermal stability
Thumbnail image of graphical abstract

In situ X-ray diffraction during heating of lobster cuticle reveals three regions of thermally induced transformations: 1)Chitin decomposition, 2) amorphous calcium carbonate (ACC) – calcite transformation, and 3) amorphous calcium phosphate (ACP) – hydroxyapatite transformation. These results provide new insights into the stabilization mechanisms of amorphous biominerals based on ACC and ACP.