Fmoc-diphenylalanine self assembles to a hydrogel via a novel architecture based on π–π interlocked β-sheets

Smith, Andrew and Williams, Richard and Tang, Claire and Coppo, Paolo and Collins, Richard and Turner, Michael and Saiani, Alberto and Ulijn, Rein Vincent (2008) Fmoc-diphenylalanine self assembles to a hydrogel via a novel architecture based on π–π interlocked β-sheets. Advanced Materials, 20 (1). pp. 37-41. ISSN 1521-4095

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Abstract

The self assembly of peptide hydrogelators that carry aromatic substituents can be modeled by a novel nanocylindrical architecture. The proposed model suggests that the nanocylinders are formed by anti-parallel β-sheets interlocked by the π-stacking interactions of fluorenyl groups and phenyl rings. This explanation is consistent with the structures observed in TEM and the data obtained by a variety of spectroscopic techniques.