Bioluminescent Billboards

[Images: A “living neon sign” made of bioluminescent bacteria; via UC San Diego].

Scientists at UC San Diego have made a bioluminescent bacterial billboard. They call it a “living neon sign composed of millions of bacterial cells that periodically fluoresce in unison like blinking light bulbs.” Making it all work “involved attaching a fluorescent protein to the biological clocks of the bacteria, synchronizing the clocks of the thousands of bacteria within a colony, then synchronizing thousands of the blinking bacterial colonies to glow on and off in unison.”

These are referred to as biopixels.

Two summers ago, we looked at the idea of a “bioluminescent metropolis,” where light-emitting organisms could be used to supplement—or even replace—a city’s existing sources of illumination, as if scaling the Newnes Glow Worm Tunnel up to size of a whole city (something that might be useful for places where streetlights are being turned off and even physically removed because paying tax in support of public infrastructure is socialist).


[Image: Bioluminescent billboards by Liam Young].

So could this vision of a bioluminescent metropolis be far off? UC San Diego suggests that their “flashing bacterial signs are not only a visual display of how researchers in the new field of synthetic biology can engineer living cells like machines, but will likely lead to some real-life applications.” Surely it would not take much work—even if only as a media stunt—to make a full-scale functioning prototype of a bioluminescent streetlight? Or a bioluminescent bathroom nightlight for your kids?


(Via Wired UK).

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