ESPCI web site
Séminaire Café (Interne)
Il s’agit d’un exposé assez court (20 min) et assez informel.
Prière aux conférencier·ère·s de ne jamais dépasser 30 min et de vérifier la compatibilité avec le projecteur avant le séminaire.
Les séminaires ont lieu les jeudis après la réunion du laboratoire qui débute à 13h30 dans la bibliothèque du labo sur le campus Jussieu, Barre Cassan, Bât A, 1er étage.
Pour suggérer un titre et envoyer un abstract, contacter 
et 
.
Coffee seminars are supposed to be short and informal presentations (20 min).
Please never last longer than 30 min and check the compatibility of the projector with your computer before the seminar.
Location : Campus Jussieu, Barre Cassan, Bât A, 1er étage
7 quai Saint Bernard
75005 Paris
To suggest a title or send an abstract, please contact and
| 16 avril | Nicolas Lobato-Dauzier - LJP Physics of Morphogenesis via Synthetic Mechano-Chemical Couplings Morphogenesis — the emergence of shape and organization in living systems — arises from a subtle interplay between chemical signaling and mechanical forces. Understanding how these processes couple across scales remains a central challenge in physics and biology. In this talk, I will present an in-vitro approach to study morphogenesis from the bottom up, using programmable synthetic systems where chemistry and mechanics can be independently designed and coupled. I will first introduce two powerful yet largely separate frameworks : DNA-based reaction–diffusion systems, which enable programmable chemical patterning, and microtubule–kinesin active gels, which exhibit rich mechanical self-organization. Bringing these two worlds together opens the possibility to recreate, in the lab, the fundamental feedbacks that drive morphogenesis. In this context, I will present our recent Physical Review X (2025) results [1], where we coupled a DNA reaction–diffusion front to an active gel under confinement. This study demonstrates how mechanical activity reshapes chemical propagation, giving rise to reaction–diffusion–advection (RDA) dynamics — the first experimental realization of a synthetic mechano-chemical front. Finally, I will present two ongoing directions : the reciprocal coupling, where chemical reactions control mechanical activity, and the role of geometry in shaping mechanical organization, illustrated by active matter confined within droplets [2]. Together, these studies outline a path toward synthetic cells and tissues capable of autonomous self-organization. [1] Lobato-Dauzier, Nicolas, et al. "Confinement determines transport of a reaction-diffusion active matter front." Physical Review X (2025) [2] Leroux, Romain, et al. "Density and shape govern the dynamical self-organization of active matter on a droplet." arXiv preprint (2026). |
| 23 avril | Simeon Djambov - LadHyX |
| 30 avril | Éléonore Duval - Université du Mans, MSC |
| 7 mai | Nicolas Harmand - LJP |
| 14 mai | Ascension - pas de séminaire café |
