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Grosse GROSSE chatte


The BacterioClock

Were you dreaming about a new way of thinking everyday life objects ? Be sure that this will come true, under the form of our BacterioClock ! A simple tube which contains the modified bacteria we have created will give you the time, directly coming from living organisms.

[http://www.igem.org Video_de_ouf_!]

To achieve this incredible project, we have decided to rely on a genetic structure that allows a specific sequence of lighting (Firt In - First Out behaviour) to occur. The models designed have shown that simply adding a negative feedback from a lighting gene to the first activator will not yield oscillations ! Therefore, we have proposed to induce a necessary delay, through a synchronization process among the population, as represented below :

More precisely, the oscillations obtained allow a precise control of the period of our clock. One can imagine to have a self-tuning according to daylight for instance.