Biocompatible Films: Rapid Nanoimprinting of Silk Fibroin Films for Biophotonic Applications (Adv. Mater. 15/2010)

Natural silk fibers provide the raw material to constitute biocompatible films with favorable properties for nanopatterning and device integration. The image shows a free-standing credit-card sized film constituted entirely by silk and containing a number of diffractive optics (lenses, microlens arrays, gratings, phase masks). Such elements can be obtained either by casting or rapid nanoimprinting of silk films (master courtesy of Tessera Inc.). Further details can be found in the Communication by Fiorenzo Omenetto and co-workers on p. 1746.