Italian scientists use bacteria to recreate the Mona Lisa
A team of Italian scientists has discovered a surprisingly artistic use for E. coli. By genetically engineering the bacteria to respond to light, the team has demonstrated a way to shape E. coli into complex, reconfigurable density patterns—such as Leonardo da Vinci’s “Mona Lisa”—using only a low-power projector
The team projected a microscopic black-and-white negative image of the Mona Lisa onto the bacterial layer and observed as the bacteria eventually concentrated in dark regions of the projection and swam away from the brightest regions. After 4 minutes, the scientists had a somewhat blurry replica of the famous artwork, as revealed by dark field microscopy.
The Mona Lisa portrait was formed with one million pieces of light-sensitive E. coli.
The researchers have also created portraits of two of the worlds most famous scientists: Albert Einstein and Charles Darwin.
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