Tiling patterns can be found thoughout the natural world - from honeycomb to fish scales. But now researchers have come up with a new way to create patterns in petri dishes using bacteria. By engineering bacterial cells to express uniquely adhesive proteins on their surface, the team could create linear patterns - formed as colonies of cells stuck together when they grew. What's more, by varying the exact proteins expressed and modelling where to place the bacterial cells, they were able to control the resulting geometry - creating a range of complex patterns.
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