Figure 2

Schematic of crimped collagen fiber. The collagen filament coils around a central axis that is aligned in the fiber direction. The diameter of the filament, the diameter of the fiber helix, and the crimp angle are illustrated.
Schematic of crimped collagen fiber. The collagen filament coils around a central axis that is aligned in the fiber direction. The diameter of the filament, the diameter of the fiber helix, and the crimp angle are illustrated.