Structure of single-wall peptide nanotubes: in situ flow aligning X-ray diffraction
Castelletto, V., Nutt, D. R., Hamley, I. W., Bucak, S., Cenker, Ç. and Olsson, U. (2010) Structure of single-wall peptide nanotubes: in situ flow aligning X-ray diffraction. Chemical Communications, 46 (34). pp. 6270-6272. ISSN 1359-7345
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To link to this item DOI: 10.1039/c0cc00212g
The structure of single wall peptide nanotubes is presented for the model surfactant-like peptide A6K. Capillary flow alignment of a sample in the nematic phase at high concentration in water leads to oriented X-ray diffraction patterns. Analysis of these, accompanied by molecular dynamics simulations, suggests the favourable self-assembly of antiparallel peptide dimers into beta-sheet ribbons that wrap helically to form the nanotube wall.