Making intricate images with bacterial communities -

Working with light and genetically engineered bacteria, researchers from Stanford University are able to shape the growth of bacterial communities. From polka dots to stripes to circuits, they can render intricate designs overnight. The technique, described in the Mar. 19 in Proceedings of the National Academy of Sciences, can achieve biofilms grown at a resolution of 25 micrometers, which is about one-quarter the size of a grain of table salt.


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