Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Domaines cond-mat.mes-hall
Date Lundi 15 Janvier 2018
Heure 11:00
Institut LPTMC
Salle tower 13-12 room 5-23
Nom de l'orateur Estevez-Torres
Prenom de l'orateur André
Addresse email de l'orateur andre [dot] estevez-torres [at] upmc [dot] fr
Institution de l'orateur Laboratoire Jean Perrin, Paris
Titre Writing down reaction-diffusion equations with DNA
Résumé The question that motivates my research is: to what extent non-equilibrium molecular systems can create order at the macroscopic scale, in particular spatial order. A major mechanism of spatial self-organization is reaction-diffusion. For decades reaction-diffusion has been experimentally investigated using the Belousov-Zhabotinsky reaction and its cousins. The problem is that the dynamics of this reaction is difficult to change, limiting the number of questions that one can address using this system. As a possible solution to this drawback I will introduce an approach to engineer chemical dynamical systems using DNA and three enzymes. I will then describe the experimental implementation of various reaction-diffusion patterns with this system: monostable and bistable traveling fronts, predator-prey waves and spirals, and immobile fronts. Finally, I will suggest open theoretical questions that we have encountered while
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