BOB HIRSHON (host):
Silky smooth sensors….I’m Bob Hirshon and this is Science Update.
Silk may be a luxurious material for clothing and bedsheets, but now, researchers have found that it makes a good optical material too. Fiorenzo Omenetto is a biomedical engineer at Tufts University. He and his colleagues boiled silkworm cocoons and extracted the proteins to form a pure, silk solution.
FIORENZO OMENETTO (Tufts University):
By just pouring it on a flat surface can be reformed into these freestanding, very clear films that resemble a very transparent piece of plastic or piece of thin glass.
HIRSHON: Omenetto and his colleagues are exploring one potential application: a sensor for bagged produce that changes color if the food is spoiled. Since silk-based sensors would be safe to eat, you could munch the sensor along with your veggies. I’m Bob Hirshon for AAAS, the science society.