Table 1. A comparison of the mechanical characteristics of MWCNT blocks and cortical bone.

Characteristic	MWCNT blocks*	Cortical bone	Ref.
Bulk density, ρ (g/cm3)	1.34	1.304–1.882	[23]
Young's modulus, Eb (Gpa)	6.4–7.8	9.82–15.7	[22]
Fracture bending strength, (σb)	29.0–47.6	103.5–238.2	[22]
Vickers hardness, Hv (Mpa)	33.2	31.6–34.2	[21]

* Adapted with permission from Sato Y, Ootsubo M, Yamamoto G, Van Lier G, Terrones M, Hashiguchi S, et al. Super-robust, lightweight, conducting carbon nanotube blocks cross-linked by de-fluorination. ACS Nano. 2008;2: 348–356. Copyright 2008 American Chemical Society.