Engineers create programmable silk-based materials with embedded, pre-designed functions

MEDFORD/SOMERVILLE, Mass. (December 26, 2016) -- Tufts University engineers have created a new format of solids made from silk protein that can be preprogrammed with biological, chemical, or optical functions, such as mechanical components that change color with strain, deliver drugs, or respond to light, according to a paper published online this week in Proceedings of the National Academy of Sciences (PNAS).