A Different Kind of Secret Code

the article
: Researchers have invented a new form of secret messaging using
bacteria that make glowing proteins only under certain conditions. In addition
to being useful to spies, the new technique could also allow companies to
encode secret identifiers into crops, seeds, or other living commodities. The
new glowing bacteria actually did grow out of a bit of cloak-and-dagger
thinking. Several years ago, the Defense Advanced Research Projects Agency
asked researchers to submit ideas for ways to encode secret messages without
the need for electronics. At the time David Walt, a chemist at Tufts University
in Medford, Massachusetts, teamed up with his former adviser George Whitesides,
a chemist at Harvard University. Together, they came up with a way to add a
variety of metal salts to a fuse that, when lit, would give off a sequence of
pulses of infrared light that encoded a message. That got them thinking about
other ways to accomplish the same thing. And so last year they decided to try
something else, using bacteria to encode their secrets.]

Different Kind of Secret Code

by Robert
F. Service
26 September 2011

For the full story: http://news.sciencemag.org/sciencenow/2011/09/a-different-kind-of-secret-code.html


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s