Silk Sensors

Researchers at Tufts University are developing bio-active optical sensors made of silk that could warn of biological hazards and save lives.  The silk sensors are biodegradable, safe, and edible.  They are being bio-engineered to change color upon detecting various substances, such as E.coli in a bag of spinach, or toxins in a polluted river.  The life-saving possibilities are promising.

Creative Commons Image : SilkWormsAndLeaves by Ksionic on Flickr