Table 3.
Mechanical properties of various protein fibers in comparison with fibrin. Compiled from Ref. [17].
| Protein | Young’s Modulus (MPa) | Elongation before Break (%) |
|---|---|---|
| Fibrin fiber, non-cross-linked | 1.0–2.0 | 226 |
| Fibrin fiber, cross-linked | 11.0–15.0 | 332 |
| Elastin | 1 | 150 |
| Myofibrils | 1 | 200 |
| Resilin | 1–2 | 190, 313 |
| Fibronectin | 0.1–3.5 | 700 |
| Spider silk (Araneus Flag) | 3 | 270 |
| Fibrillin | 0.2–100 | >185 |
| Intermediate filament | 6–300 | 160–220 |
| Mussel byssus | 10–500 | 109 |
| Collagen, tendon | 160–7500 | 12 |
| Microtubules | 1000–1500 | ≤20 |
| α-Keratin wet | 2000 | 45 |
| Actin | 1800–2500 | ≤15 |
| Collagen, cross-linked | 5000–7000 | 12–16 |
| Spider silk (Araneus MA) | 10,000 | 27 |