Saturday, 24 May 2014
Artificial biocomposites of silk fibroin and amyloid fibrils
Researchers have combined two widely-studied fibrous protein assemblies – silk fibroin fibrils and amyloid fibrils – into a novel composite material. By varying the weight ratio of the two components, mechanical properties could be tuned: more amyloid fibril increased tensile modulus whereas more silk fibroin promotes tougher composites. The amyloid component could be enzymatically removed to generate a porous silk membrane. Inorganic components were also added and a shape memory effect observed.
Modulating Materials by Orthogonally Oriented β-Strands: Composites of Amyloid and Silk Fibroin Fibrils; S. Ling et al; Advanced Materials; DOI: 10.1002/adma.201400730