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Upcoming seminars

26
MAR
Hierarchy and extremes in selections from pools of randomized proteins
By Clément Nizak (ESPCI)
March 26, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Variation and selection are the core principles of Darwinian evolution, but quantitatively relating the diversity of a population to its capacity to respond to selection is challenging. Here, we ...
02
APR
3-D Optical imaging of tissue dynamics: From label-free characterization of tissues to sensory-motor integration in the
By Olivier Thouvenin (ESPCI)
April 2, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Even though biological tissues are highly dynamic at many different scales, traditional optical microscopes can often enable to track only a portion of them. While the optical diffraction limit ...
09
APR
TBA
By Catherine Villard
April 9, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
TBA
16
APR
TBA
By Marcel Filoche (PMC/Polytechnique)
April 16, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
TBA
07
MAY
TBA
By Nicolas Chevalier (MSC)
May 7, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
TBA
14
MAY
TBA
By Mohamed Barakat, Philippe Ortet (CEA Cadarache)
May 14, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
TBA
23
MAY
TBA
By Claudia Bank (Gulbenkian Institute)
May 23, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
TBA
28
MAY
Understanding Molecular Mechanisms of Biological Error Correction
By Anatoly B. Kolomeisky (Rice University)
May 28, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
One of the most fascinating features of biological systems is the ability to sustain anextraordinary high accuracy of all major cellular processes despite the stochastic nature ofunderlying chemical ...
04
JUN
Internal Seminar: TBA
By Wafa Ben Youssef / Iaroslava Golovkova
June 4, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
TBA
18
JUN
TBA
By Matthieu Piel (Institut Curie)
June 18, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
TBA


Previous seminars

How the enteric pathogen Shigella invades and destroys the gut: from molecular study to mechanobiology
By Nathalie Sauvonnet (Pasteur)
March 19, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Shigella is an enteroinvasive bacterium that induces human bacillary dysentery. The delivery of 30 bacterial effectors inside host cells allows the bacteria to invade colon epithelial cells, lyse the ...
Calcium dynamics in neurons, extreme statistics and role of redundancy in molecular transduction
By David Holcman (ENS/IBENS)
March 12, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Calcium plays a critical role in several synaptic transduction pathways. We report and discuss here fast calcium transients and how they are possible in dendritic spines. The talk will discuss fast ...
Active sieving : from flapping nano-doors to vibrating nanotubes
By Sophie Marbach (LPS/ENS)
March 5, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Filtering specific molecules is a challenge faced for several vital needs: from biomedical applications like dialysis to the intensive production of clean water. The domain has been boosted over the ...
Exclusion, congestion, and the evolution of collective action
By Jorge Peña (IAST, Toulouse)
February 26, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Collective action occurs when individuals work together to provide a collective good. Examples abound in the social and natural sciences: humans collectively build houses, roads, and walls; lions work...
Understanding and steering microbial ecosystems for environmental biotechnologies: how does energy shape microbial co
By Théodore Bouchez (Irstea)
February 19, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Microbes are the most abundant living entities on earth and are key engines that drive earth's biogeochemical cycles. I will first briefly illustrate some of our research activities for better ...
Impact of gut microbiota on adult brain plasticity
By Gabriel Lepousez (Institut Pasteur)
February 12, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
New neurons are continuously generated in only a few areas of the adult mammalian brain--the olfactory bulb and the dentate gyrus--where they integrate into already functioning circuitry. In these ...
Task engagement induces population-level behavioral representations in primary auditory cortex
By Yves Boubenec (Département d'études cognitives, ENS)
February 5, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Primary sensory cortices are classically considered to extract and represent stimulus features, while association and higher-order areas are thought to carry information about stimulus meaning. Here ...
Learning to soar using atmospheric thermals.
By Jérôme Wong Ng (Institut Pasteur)
January 29, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
In a similar way to bacteria that have to navigate in their environment, soaring birds try to minimize their effort by finding and exploiting ascending currents. However the environment is highly ...
Spying on cells with glowing chemical-genetic hybrids
By Arnaud Gautier (ENS Chimie)
January 22, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Deciphering the complex mechanisms controlling cells and organisms requires effective imaging systems and fluorescent probes to observe and quantify biomolecules in real time with high spatiotemporal ...
Antigenic evolution of viruses in host populations
By Igor Rouzine (Sorbonne Université - LCQB)
January 15, 2019 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
To escape immune recognition in previously infected hosts, viruses evolve genetically in immunologically important regions. The host’s immune system responds by generating new memory cells ...
AG
By LJP
December 11, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
AG
Internal Seminar
By Anis Senoussi / Ananyo Maitra
November 27, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Maitra :   Can orientational order be sustained in highly active systems?   It is generally believed that orientationally ordered phases of active particles in fluids are generically ...
Insect navigation: lessons from walking ants and crawling larvae
By Antoine Wystrach (Centre de Recherches sur la Cognition Animale, Toulouse)
November 20, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
The remarkable navigational abilities of insects are proof that small brains can produce exquisitely efficient, robust navigation in complex environments. We will see here how such behaviours can ...
Understanding spatiotemporal stoichiometry of proteins in living cells / A global view on HIV-1 fusion
By Sergi Padilla / Luis Alvarez (Oxford)
November 14, 2018 at 02:00PM - Salle de séminaires 5ème étage, Tour 32-33
Number and Brightness : from theory to practice in understanding spatiotemporal stoichiometry of proteins in living cells - Luis Alvarez The study of protein spatiotemporal time resolved dynamics in ...
DNA microgels and microdroplets toward artificial cell-like systems
By Masahiro Takinoue (Tokyo Institute of Technology)
November 13, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
In recent years, the study of DNA hydrogels has been actively continued in the wide range of research fields from biophysical basic science to biological applications. However, the behaviors of DNA ...
A sneak peak with light into opaque materials
By Sylvain Gigan (LKB)
November 6, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Complex heterogeneous materials, that scatter light in a highly complex way, present a huge challenge for imaging (think of seeing inside or through milk or biological tissues) and a very interesting ...
Illuminating the regulation of bacterial DNA repair and mutagenesis using single-molecule and single-cell microscopy
By Stephan Uphoff (Oxford)
October 16, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Evolutionary processes are driven by diverse molecular mechanisms that act in the creation and prevention of mutations. It remains unclear how these mechanisms are regulated because limitations of ...
Active depinning of bacterial droplets: The collective surfing of Bacillus subtilis
By Adrian Daerr (MSC, Univ Paris Diderot)
October 9, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
How systems are endowed with migration capacity is a fascinating question with implications ranging from the design of novel active systems to the control of microbial populations. Bacteria, which can...
L'impact potentiel des microorganismes sur la chimie et la physique des nuages
By Anne-Marie Delort (Institut de Chimie de Clermont-Ferrand)
October 2, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Phage-bacteria interactions in the mouse gut
By Marianne De Paepe (Institut Micalis, INRA)
September 18, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
While it is clear that bacteriophages, the viruses that infect bacteria, abound in all bacterial communities, their role in the ecology of these communities remains poorly understood. In particular, ...
Shapes and dynamics of lipid membrane systems: from pulsatile artificial vesicles to intracellular membrane structures
By Morgan Chabanon (UCSD)
September 11, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Cellular lipid bilayers are found to display incredibly diverse shapes and dynamics, both at the plasma membrane and at membrane bound organelles. To understand the relationship between the complex ...
Yeast rockets, or how do growing microbial colonies generate their own propelling flow in liquids
By Severine Atis (Harvard)
September 7, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Transport phenomena shape and constantly reorganize materials at every scale, influencing their dispersion, segregation and clustering. Range expansions coupled with fluid flows are of great ...
Self-organization of motors, bundlers and microtubules
By Thomas Surrey, The Francis Crick Institute, London
September 3, 2018 at 02:00PM - Salle de séminaires 5ème étage, Tour 32-33
During cell division, the bipolar spindle self-assembles and segregates the genetic material of the cell. For this task, microtubules are arranged in space and time by motor proteins and ...
Collective behaviors of motile bacteria
By Victor Sourjik (Max Planck Institute for Terrestrial Microbiology, Marburg)
August 30, 2018 at 02:30PM - Salle de séminaires 5ème étage, Tour 32-33
Bacterial motility and chemotaxis are typically viewed as single-cell behaviors, used by individual bacteria to identify conditions that are favorable for growth. For the well-studied model ...
Surfing Energy Landscapes in Self-Assembling Systems: From trapped states to fueled matter with programmable lifetimes
By Andreas Walther (Albert-Ludwigs-University Freiburg)
June 26, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Synthetic self-assembling systems have largely been developed with a focus on equilibrium structures. Such structures have become switchable by integration of responsive elements, which is the basis ...
DNA double strand break repair in single E. coli cells
By Meriem El Karoui (The University of Edimbourgh)
June 19, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
It has been shown in recent years that even genetically identical cells behave differently because many central processes involve molecules present in small numbers. The inherent randomness of ...
Functions promoting the rise and fall of bacterial biofilms
By Jean-Marc Ghigo (Institut Pasteur)
June 12, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Surface-attached bacterial communities (biofilms) are widespread and contribute to infections and biofouling in medical and industrial settings. The dense and highly heterogeneous biofilm environment ...
Understanding the coupling between nucleosome and transcription factor dynamics
By Michael Poirier
June 5, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
The physical organization of all eukaryotic genomes is evolutionarily conserved. Histone protein octamers repeatedly wrap genomic DNA into nucleosomes to form long chromatin fibers. Nucleosomes and ...
To move, or not to move, that is the evolutionary question: Evolution of growth and dispersal in bacterial populations.
By Maxime Deforet
May 30, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
I will present two projects demonstrating the interplay between growth and dispersal in evolutionary contexts. In the first one, I focus on the evolution of expanding populations, such as bacterial ...
Le treuil élastocapillaire en une et deux dimensions
By Sébastien Neukirch (Institut Jean le Rond d'Alembert)
May 15, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Nous parlerons d'élasto-capillarité, domaine mellant la déformation des structures élastiques et les forces de tension de surface. En effet, les forces capillaires que ...
High-resolution mapping of bifurcations in nonlinear biochemical circuits
By Anthony Genot (LIMMS/U. Tokyo, Japan)
April 10, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
DNA has emerged in the past decades as a versatile and powerful polymer to build and program at the nanoscale. A rich library of devices has been built with DNA: origamis [1], biochemical neural ...
Phototaxis and texture perception
By Sophia Karpenko et Jean-Baptiste Tomazo (LJP)
March 27, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
In-mouth texture perception (Jean-Baptiste) Recent psychophysics based experimental investigations on both humans and rodents have revealed that the tongue-palate system of mammals possesses ...
Continuous model for water and electrolytes
By Hélène Berthoumieux (LPTMC, UPMC)
March 20, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Water plays an essential role as a solvent for a broad range of processes in nanometric confinement, for example conformational change of proteins or ion transport in biological channels. Modeling ...
Autocatalytic reaction fronts in disorder media
By Laurent Talon
March 14, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Autocatalytic reaction fronts between two reacting species, propagate as solitary waves. The coupling between autocatalytic reaction front and forced hydrodynamic flow may lead to stationary fronts ...
Dynamics and mechanical properties of actin cytoskeleton networks in vitro and in cellulo
By Olivia du Roure (ESPCI)
February 13, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Actin is a protein which self-assembles into highly dynamic semi-flexible filaments organized, within the cells, in different kind of meshworks (bundles, crosslinked or dendritic networks). The ...
TBA
By Loïc Marrec and Marc Van Der Hofstadt Serrano (LJP, Internal seminar)
February 6, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Loïc's talk Quantifying the impact of a periodic presence of antimicrobial on resistance evolution in ahomogeneous microbial population of fixed sizeAbstract:Antimicrobial resistance is a major ...
Hydrodynamics of bacteria
By Eric Lauga (Cambridge, UK)
January 30, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Most motile bacteria are equipped with multiple helical flagella, slender appendages whose rotation in viscous fluids allow the cells to self-propel. We highlight in this talk three consequences of ...
Cybergenetics : control of gene expression and biological circuits
By Pascal Hersen (MSC, Paris Diderot et CNRS)
January 23, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Gene expression plays a central role in the orchestration of cellular processes. We recently developed an experimental platform for real-time, closed-loop control of gene expression that integrates ...
Disassembly of actin filaments drive actin network contraction in the starfish oocyte
By Serge Dmitrieff (EMBL)
January 16, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
While contraction of muscle actomyosin assemblies is well understood, this is not the case for disordered networks of actin filaments (F-actin) driving diverse essential processes in animal cells. For...
Vitrimers: Insoluble yet reshapable chemically crosslinked networks
By François Tournilhac (ESPCI, Lab. Matière molle et chimie)
January 9, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Vitrimers, invented in 2011, are chemically crosslinked networks characterized by the presence of exchangeable links, a feature that allows to change topology while keeping the integrity of the ...

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