Wednesday, September 28, 2011

 Spies could hide messages in gene-modified microbes

A new encryption method, “steganography by printed arrays of microbes (SPAM),” uses a collection of Escherichia coli strains modified with fluorescent proteins that glow in a range of seven colors.

“You can think of all sorts of secret spy applications,” says David Walt, a chemist at Tufts University, who led the research.

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