Fig. 5: Fibre XRD patterns and mechanical properties obtained for different fibres formed under various pulling speeds. | Communications Materials

Fig. 5: Fibre XRD patterns and mechanical properties obtained for different fibres formed under various pulling speeds.

From: Manipulating the water–air interface to drive protein assembly for functional silk-like fibroin fibre production

Fig. 5

Red arrow indicates the reflection assigned to the hexagonal packing of the solenoid units (ca. 16 Å) and black arrows indicate typical Silk-II reflections (ca. 9.5, 4.5 and 3.85 Å) accompanied by schematic cartoon representing the proposed transition from loosely packed β-solenoid units, to hexagonally packed and further denatured to collapse in β-sheet nanocrystallites that make up most the matured silk fibre (a). Average single fibre tensile testing for fibres produced at different pulling speeds (b), and polar plot comparing native silkworm fibroin fibre key determined properties elastic modulus diameter, tensile strength, strain at break and toughness against the fabricated fibres (c).

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