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Séminaires à venir

11
SEP
TBA
Par Morgan Chabanon (UCSD)
Le 11 Septembre 2018 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
TBA
18
SEP
TBA
Par Marianne De Paepe
Le 18 Septembre 2018 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
TBA


Séminaires passés

Surfing Energy Landscapes in Self-Assembling Systems: From trapped states to fueled matter with programmable lifetimes
Par Andreas Walther (Albert-Ludwigs-University Freiburg)
Le 26 Juin 2018 à 11h00 - 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
Par Meriem El Karoui (The University of Edimbourgh)
Le 19 Juin 2018 à 11h00 - 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
Par Jean-Marc Ghigo (Institut Pasteur)
Le 12 Juin 2018 à 11h00 - 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
Par Michael Poirier
Le 5 Juin 2018 à 11h00 - 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.
Par Maxime Deforet
Le 30 Mai 2018 à 11h00 - 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
Par Sébastien Neukirch (Institut Jean le Rond d'Alembert)
Le 15 Mai 2018 à 11h00 - 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 ...
High-resolution mapping of bifurcations in nonlinear biochemical circuits
Par Anthony Genot (LIMMS/U. Tokyo, Japan)
Le 10 Avril 2018 à 11h00 - 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
Par Sophia Karpenko et Jean-Baptiste Tomazo (LJP)
Le 27 Mars 2018 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
Phototaxis : a behavioral implementation & neural underpinnings. (Sophia)   In-mouth texture perception (Jean-Baptiste) Recent psychophysics based experimental investigations on both ...
Continuous model for water and electrolytes
Par Hélène Berthoumieux (LPTMC, UPMC)
Le 20 Mars 2018 à 11h00 - 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
Par Laurent Talon
Le 14 Mars 2018 à 11h00 - 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
Par Olivia du Roure (ESPCI)
Le 13 Février 2018 à 11h00 - 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 ...
Evolution of antimicrobial resistance and Synthetic networks with cells
Par Loïc Marrec and Marc Van Der Hofstadt Serrano (LJP, Internal seminar)
Le 6 Février 2018 à 11h00 - 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
Par Eric Lauga (Cambridge, UK)
Le 30 Janvier 2018 à 11h00 - 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
Par Pascal Hersen (MSC, Paris Diderot et CNRS)
Le 23 Janvier 2018 à 11h00 - 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
Par Serge Dmitrieff (EMBL)
Le 16 Janvier 2018 à 11h00 - 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
Par François Tournilhac (ESPCI, Lab. Matière molle et chimie)
Le 9 Janvier 2018 à 11h00 - 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 ...
Causal Inference in Cognitive Neuroscience
Par Moritz Grosse-Wentrup (Max Planck Tuebingen)
Le 12 Décembre 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
Neuroimaging techniques enable us to establish associations betweenbrain activity and cognitive functions. Associations do not inform us,however, about the causal mechanisms that govern how brain ...
New autocatalytic reaction schemes for molecular amplification in biomolecular diagnostics.
Par François Mavré (Lab. Electrochimie Moléculaire, Université Paris Diderot)
Le 5 Décembre 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
Biomolecular diagnostic requires high level of selectivity and sensitivity to provide relevant information about the pathological state of a patient. While selectivity relies often on specific ...
Secondary structure of DNA: Epigenetic regulation and resolution by helicases
Par Phong Lan Thao TRAN (Regulation et Dynamique des Genomes, Muséum)
Le 28 Novembre 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
Guanine quadruplexes (G4) are non-canonical four-stranded nucleic acid structures formed by guanine-rich DNA and RNA sequences. G4 motifs, which are commonly found in gene promoters, replication ...
Faire des choix chez l'amibe sociale et le ver C. elegans
Par Jean-Marc Di Meglio (Matière et Systèmes Complexes - Université Paris Diderot et CNRS)
Le 21 Novembre 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
Nous présentons des expériences où des animaux modèles sont confrontés à une prise de décision : nager ou ramper chez le ver nématode, se ...
Confining and releasing cell monolayers
Par Pascal Silberzan (Institut Curie, Paris)
Le 14 Novembre 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
Cell monolayers routinely exhibit collective behaviors largely controlled by cell-cell interactions. In this context, confinement and boundary conditions play an important role in the organization and...
Bacteria Are Stressed Out Too: The Physics of Mechanosensation
Par Rob Phillips (Caltech, USA)
Le 24 Octobre 2017 à 11h00 - Salle de réunion LJP (tour 32-33, 5ème étage)
The control of water flow in living organisms is central to their survival.Amphibians die in long time exposure to salt water raising many biogeographical questions abouthow oceanic islands like those...
Tba
Par Aristides Arrenberg
Le 27 Septembre 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
Tba
Internal seminar: droplet generation and vestibular sensing
Par Manon Valet and Geoffrey Migault
Le 20 Septembre 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
Manon will speak about "Quasi-static microdroplet production in a capillary trap" Manon's abstract: "We have developed a method to produce aqueous microdroplets in an oil phase, based on the periodic...
Deciphering the family of immune cells at the single cell level
Par Leïla Périé (Institut Curie)
Le 13 Septembre 2017 à 11h00 - Salle de réunion LJP (tour 32-33, 5ème étage)
How heterogeneous systems of cells constituting multicellular organisms establish, organize and achieve coordination persists as a central question in natural sciences. Whereas stochastic gene or ...
Vulgariser la physique autrement
Par Julien Bobroff (Laboratoire de Physique des Solides, Université Paris-Sud et CNRS)
Le 21 Juin 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
Vous souvenez-vous du prix Nobel de physique de cette année sur la topologie dans les solides ? Faîtes le test autour de vous : il est passé relativement inaperçu, ...
Biomechanics in plants and fungi: fern sporangium catapult and invasive filamentous fungi growth
Par Xavier Noblin (Institut de Physique de Nice, U. Nice et CNRS)
Le 14 Juin 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
In the first part, I will describe our study on ferns sporangia where negative pressures lower than -100 bar are used in this catapult-like elastic beam. ...
Optogenetic dissection of cell polarity and migration
Par Mathieu Coppey (Institut Curie)
Le 7 Juin 2017 à 11h00 - Salle de réunion LJP (tour 32-33, 5ème étage)
The migration of eukaryotic cells requires a high coordination of molecular activities in space and time. When migrating, cells present a highly polarized state as revealed by the many subcellular ...
Extrinsic mechanical forces mediate retrograde axon extension in a developing neuronal circuit
Par Marie Breau (Institut de Biologie Paris Seine)
Le 24 Mai 2017 à 11h00 - Salle de réunion LJP (tour 32-33, 5ème étage)
During neuronal circuit formation, neurons move towards their final location while growing axons towards their target. Whereas the biochemical guidance cues involved in neuronal migration and axon ...
The non-intuitive phenomenology of highly diverse microbial communities
Par Mikhail Tikhonov (Harvard)
Le 17 Mai 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
The sequencing-driven revolution in microbial ecology unveiled the complexity of microbial communities that shape the health of our planet, and our own. Despite the ever-growing amount of data, our ...
Vascular colonization by Neisseria meningitidis
Par Guillaume Duménil (institut Pasteur)
Le 10 Mai 2017 à 11h00 - Salle de réunion LJP (tour 32-33, 5ème étage)
Bacterial infection of human vasculature can lead to unregulated systemic activation of coagulation and innate immunity and rapidly becomes life threatening. Neisseria meningitidis is a vascular ...
Internal seminar LJP: Stochastic gene expression and hydrogel swelling
Par Alexandre Deloupy et Thibault Bertrand
Le 3 Mai 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
Alexandre Deloupy: Stochastic gene expression in Bacillus subtilis *** Thibault Bertrand: Dynamics of Swelling and Drying in Hydrogels"Swelling is a fundamental process in biology, engineering, and ...
Dendritic and cellular mechanisms of spatial representations in the brain
Par Christoph Schmidt-Hieber (Institut Pasteur)
Le 26 Avril 2017 à 11h00 - Salle de réunion LJP (tour 32-33, 5ème étage)
How are neuronal codes of the spatial environment generated at thelevel of synapses, neurons, and neuronal circuits? Neurons in layer 2of the medial entorhinal cortex (MEC2) fire spikes at regular ...
Protein phase transitions in and out of cells
Par Ned Wingreen (Physics Dept., Princeton University, USA)
Le 18 Avril 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
Biologists have recently come to appreciate that eukaryotic cells are home to a multiplicity of non-membrane bound compartments, many of which form and dissolve as needed for the cell to function. ...
Confotronic Machines
Par Igor Kulic (CNRS, Institut Charles Sadron, Strasbourg)
Le 5 Avril 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
Many biological structures including viral capsids,  transmembrane proteins and filaments (DNA, F-actin , bacterial flagella and microtubules) are well known to undergo conformational ...
Ecological scaffolding and the origins of multicellularity
Par Paul B Rainey (New Zealand Institute for Advanced Study and ESPCI)
Le 29 Mars 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
The evolution of multicellular life from unicellular predecessors marks a Major Evolutionary Transition that underpins the emergence of biological complexity.  Cooperation is central to the ...
AG LJP
Par Jean Perrin
Le 22 Mars 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
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Disordered actomyosin contracts in unexpected ways
Par Martin Lenz (LPTMS of CNRS and Université Paris-Sud)
Le 15 Mars 2017 à 11h00 - Disordered actomyosin contracts in unexpected ways
The motion of living cells is in large part due to the interaction of semi-flexible actin filaments (F-actin) and myosin molecular motors, which induce the relative sliding of F-actin. It is often ...
Cytoskeletal Mechanics: Contractile Actomyosin Networks
Par François Nédélec (Cell Biology and Biophysics, EMBL Heidelberg, Germany)
Le 8 Mars 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
with Julio Belmonte and Maria Leptin The cytoskeleton drives many essential processes in vivo, but for this the system of filaments will arrange itself into different overall spatial organizations, ...
Soutenance HdR de Raphaël Candelier
Par Raphael Candelier (LJP/UPMC et CNRS)
Le 21 Février 2017 à 10h30 - Amphithéâtre Charpak
Raphaël Candelier a le plaisir de vous inviter à sa soutenance d'habilitation à diriger des recherches qui se tiendra le mardi 21 février à 10h30 à ...
Cell shape, microtubule asters and early embryonic development
Par Nicolas Minc (Institut Jacques Monod, U. Paris Diderot)
Le 1 Février 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
Life for all animals starts with the fertilization of the egg, followed by the centration of the sperm nucleus and a 3D-choreography of reductive cell divisions called cleavage patterns. These ...
Instabilities in Bacterial Biofilms
Par Carine Douarche (LPS, Université Paris Sud)
Le 25 Janvier 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
When observing the morphogenesis of Bacillus subtilis floating biofilms, we detect some kinds of bacteria self-assemblies at the liquid-air interface that further undergo a bioconvection process. ...
Diversity of immune receptor repertoires
Par Aleksandra Walczak (LPT, ENS)
Le 11 Janvier 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
Recognition of pathogens relies on the diversity of immune receptor proteins. Recent experiments that sequence the entire immune cell repertoires provide a new opportunity for quantitative insight ...
Polarizing tissue morphogenesis by mechanical stress
Par Michel Labouesse (IBPS, UPMC)
Le 4 Janvier 2017 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
We are using a simple model, the nematode C. elegans, to analyze how mechanical forces influence specific cellular processes and conversely on how tissues withstand forces during morphogenesis. The C....
Journée PCC / LJP
Par Physico-Chimie Curie et Laboratoire Jean Perrin
Le 9 Décembre 2016 à 09h00 - TBA
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Environment sensing during bacterial collective motions
Par Rémy Colin, MPI for terrestrial microbiology, Marburg, Allemagne
Le 7 Décembre 2016 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
Flagellated bacteria, such as Escherichia coli, swim by a succession of more or less straight runs and short reorientations, the tumbles. The bacteria probe their environment while swimming through ...
Some physical aspects of single-cell mechanosensing
Par Atef Asnacios (MSC, Paris Diderot)
Le 30 Novembre 2016 à 11h00 - Salle de séminaires 5ème étage, Tour 32-33
As part of their physiological functions, most cells need to adapt to their mechanical environment. In particular, the rigidity of the extracellular matrix was shown to control cell traction forces, ...
AG
Par -
Le 18 Novembre 2016 à 11h00 - Seminar room LJP (tour 32-33, 5th floor)
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