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. Author manuscript; available in PMC: 2014 Mar 15.
Published in final edited form as: Faraday Discuss. 2013;166:9–30. doi: 10.1039/c3fd00120b

Fig. 2.

Fig. 2

(A) Molecular graphics representation of a canonical peptide amphiphile (PA) molecule, showing the (I) hydrophobic alkyl tail, (II) β-sheet forming residues, (III) charged residues, and (IV) bioactive peptide sequence. (B) Molecular graphics representation of a cylindrical nanofiber formed by peptide amphiphiles in water. (C) Cryogenic TEM of PA nanofibers, (D) SEM micrograph of a nanofiber network, and (E) optical image of a hydrogel formed by the nanofiber network. Adapted with permission from reference 36. Copyright 2011 Elsevier Ltd.