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. 2002 Apr 30;99(Suppl 2):6487–6492. doi: 10.1073/pnas.032527099

Figure 5.

Figure 5

2D-FT analysis of a densely packed multiple layer thin film of nanotubes generated from 1. Transmission electron micrograph of multiple layers of nanotubes obtained from 1 (magnification: ×35,000) and original 2D-FT (Inset) (Upper Left). Inverse 2D-FT of masked 2D-FT (Inset) revealing the first densely packed nanotube layer oriented horizontally (Upper Right). Inverse 2D-FT of masked 2D-FT (Inset) revealing a second nanotube layer oriented vertically (Lower Right). 2D-FT profile along the x and y axes showing the quasi-perpandicularity of the two layers (Lower Left).