This one's not for your lunch break: Daisy Ginsberg and James King, from London's Royal College of Art, teamed up with the University of Cambridge's International Genetically Engineered Machine Jamboree team to create a "Scatalog" — a briefcase full of wax stool sample models flecked with different colors. The Cambridge group transformed E. coli "into a living, color-coded chemical detector they dubbed E. chromi," The Scientist reports. "E. chromi can detect arsenic and turn orange or red or brown or purple or yellow depending on how much it finds."
Putting Feces to Work
Dec 14, 2009