This article is unavailable. "Fmoc-Diphenylalanine self assembles to a hydrogel via a novel architecture based on  interlocked beta-sheets" A. M. Smith, R. J. Williams, C. Tang, P. Coppo, R. F. Collins, M. L. Turner, A. Saiani, R. V. Ulijn*, Adv. Mater. 2008, 20, 37. If you wish to obtain a copy please contact the author below: Paolo.Coppo@brunel.ac.uk