Team:ETH Zurich/project/overview/implementationsimple

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The rule 90 leading to Sierpinski triangles can be simplified to the rule 6, which can also be called an XOR gate : if one of the two cells above is ON, the cell below them is ON, if both cells above are ON or if both cells above are OFF, the cell below is OFF.
ETH Zurich Rule 6.PNG



On our chip, cells colonies are arranged in an alternate way.



ETH Zurich 3Dprint agar plate.png



In order to implement rule 6 in our cells, we insert genes in their DNA that tell them to produce a molecule QSp or QSq depending on the signals QSp and QSq they receive from above. These signals are called quorum sensing molecules. Cells need to integrate signals they receive in order to know when they should produce a signal. This integration is made possible in the cells by molecules called integrases. To know more about these biological tools, you can read the article Biological tools.