Natural Products: A Minefield of Biomaterials

Table 7

Mechanical properties of biodegradable materials.*

Source of biomaterial	UTS (MPa)	Modulus (GPa)	Strain (%) at breakage
Bombyx mori silk (with sericin)	500	5–12	19
Bombyx mori silk (without sericin)	610–690	15–17	4–16
Bombyx mori silk	740	10	20
Collagen	0.9–7.4	0.0018–0.046	24–68
Cross-linked collagen	47–72	0.4–0.8	12–16
Polylactic acid	28–50	1.2–3.0	2–6

*Adapted from Cao and Wang (2009) [11].