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. 2017 Jul 17;14:26. doi: 10.1186/s12989-017-0207-3

Fig. 1.

Fig. 1

Rigidity measurements of multi-walled carbon nanotubes (MWCNTs). a Transmission electron microscope (TEM) images of the tangled (t) MWCNTs and rod-like (r) MWCNTs showing the gross differences in rigidity taken at 10000X. b Box-and-whisker plots of the bending ratios (Db) of tMWCNTs and rMWCNTs (***p < 0.001 between means of MWCNT Db as determined by t-test)