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. Author manuscript; available in PMC: 2010 Mar 1.
Published in final edited form as: Nano Lett. 2009 Mar;9(3):945–951. doi: 10.1021/nl802813f

Figure 1.

Figure 1

Giant (ultralong and wide) nanobelts assembled from a peptide amphiphile containing four amino acids and an alkyl tail. a, chemical structure of the peptide amphiphile. b–d, AFM images of peptide nanobelts at different scanning sizes. The assembled nanobelts are the dominant structures in the assembly system (almost artifact free). e and f, AFM images of a single-layer and a double-layer nanobelt morphology. g, AFM amplitude image of f. h, CD spectrum of the peptide nanobelt solution at a concentration of 0.05 wt % proves the existence of β-sheet secondary structure in the supramolecular assemblies.