OptoLac Tiger (IMAGE)

Princeton University, Engineering School

OptoLac Tiger

Caption

Princeton University researchers invented a method for using light to turn on and off a mechanism in E. coli bacteria that is key to making the bacteria produce valuable chemicals. Here the genetic tool they invented, called OptoLac, was demonstrated by projecting light in the pattern of a tiger onto a petri dish, which caused only the bacteria exposed to the light to produce a green fluorescent protein.

Credit

Avalos Lab/Princeton University

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