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. Author manuscript; available in PMC: 2017 Oct 1.
Published in final edited form as: Mater Sci Eng C Mater Biol Appl. 2016 Apr 30;67:822–833. doi: 10.1016/j.msec.2016.04.062

Fig. 7.

Fig. 7

TEM images of (A) single-walled carbon nanotubes without magnetic field (N-SWCNT); (B) single-walled carbon nanotubes with magnetic field of 0.06 Tesla (B-SWCNT); and (C) graphene flakes with magnetic field of 0.06 (B-SWCNT). Inset of figure (C) is the selected area electron diffraction pattern showing the crystalline structure of graphene.53