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Diphenylalanine (FF) peptides self-assemble into well ordered, discrete, hollow nanotubular structures under relatively simple conditions. AFM is used to investigate alignment of FF tubes in strong magnetic fields. Using the direction of alignment, a constraint on the orientation of the phenylalanine aromatic rings is derived and compared to a molecular model structure. These arrays have potential in future applications as functional nanoscale materials. Supporting information for this article is available on the WWW under http: //www. wiley-vch. de/contents/jc₂089/2007/c0590ₛ. pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Hill et al. (Tue,) studied this question.