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. Author manuscript; available in PMC: 2012 Jan 1.
Published in final edited form as: Nanomedicine (Lond). 2011 Apr 20;6(8):1341–1352. doi: 10.2217/nnm.11.37

Figure 2. Transmission electron microscopy image of iron-containing multiwalled carbon nanotubes.

Figure 2

Representative image of multiwalled carbon nanotubes (MWCNTs) grown using 200-mg ferrocene (MWCNT200). Iron is visible as dark spots located inside the tubes (arrow).