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Upcoming seminars

02
OCT
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
TBA
09
OCT
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...
16
OCT
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 ...
06
NOV
TBA
By Sylvain Gigan (LKB)
November 6, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
TBA
13
NOV
TBA
By Masahiro Takinoue
November 13, 2018 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
TBA


Previous seminars

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 ...
Causal Inference in Cognitive Neuroscience
By Moritz Grosse-Wentrup (Max Planck Tuebingen)
December 12, 2017 at 11:00AM - 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.
By François Mavré (Lab. Electrochimie Moléculaire, Université Paris Diderot)
December 5, 2017 at 11:00AM - 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
By Phong Lan Thao TRAN (Regulation et Dynamique des Genomes, Muséum)
November 28, 2017 at 11:00AM - 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
By Jean-Marc Di Meglio (Matière et Systèmes Complexes - Université Paris Diderot et CNRS)
November 21, 2017 at 11:00AM - 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
By Pascal Silberzan (Institut Curie, Paris)
November 14, 2017 at 11:00AM - 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
By Rob Phillips (Caltech, USA)
October 24, 2017 at 11:00AM - Seminar room LJP (tower 32-33, 5th floor)
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
By Aristides Arrenberg
September 27, 2017 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
Tba
Internal seminar: droplet generation and vestibular stimulation
By Manon Valet and Geoffrey Migault
September 20, 2017 at 11:00AM - 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
By Leïla Périé (Institut Curie)
September 13, 2017 at 11:00AM - 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
By Julien Bobroff (Laboratoire de Physique des Solides, Université Paris-Sud et CNRS)
June 21, 2017 at 11:00AM - 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
By Xavier Noblin (Institut de Physique de Nice, U. Nice et CNRS)
June 14, 2017 at 11:00AM - 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
By Mathieu Coppey (Institut Curie)
June 7, 2017 at 11:00AM - 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
By Marie Breau (Institut de Biologie Paris Seine)
May 24, 2017 at 11:00AM - 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
By Mikhail Tikhonov (Harvard)
May 17, 2017 at 11:00AM - 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
By Guillaume Duménil (institut Pasteur)
May 10, 2017 at 11:00AM - 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
By Alexandre Deloupy et Thibault Bertrand
May 3, 2017 at 11:00AM - 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, ...
Dendritic and cellular mechanisms of spatial representations in the brain
By Christoph Schmidt-Hieber (Institut Pasteur)
April 26, 2017 at 11:00AM - Seminar room LJP (tower 32-33, 5th floor)
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
By Ned Wingreen (Physics Dept., Princeton University, USA)
April 18, 2017 at 11:00AM - 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
By Igor Kulic (CNRS, Institut Charles Sadron, Strasbourg)
April 5, 2017 at 11:00AM - 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
By Paul B Rainey (New Zealand Institute for Advanced Study and ESPCI)
March 29, 2017 at 11:00AM - 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
By Jean Perrin
March 22, 2017 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33
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Disordered actomyosin contracts in unexpected ways
By Martin Lenz (LPTMS of CNRS and Université Paris-Sud)
March 15, 2017 at 11:00AM - 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
By François Nédélec (Cell Biology and Biophysics, EMBL Heidelberg, Germany)
March 8, 2017 at 11:00AM - 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, ...
HdR defense of Raphaël Candelier
By Raphael Candelier (LJP/UPMC et CNRS)
February 21, 2017 at 10:30AM - Charpak amphitheatre
Raphaël Candelier is delighted to invite you to his habilitation à diriger des recherches defense that will be held on tuesday, Febreuary 21 at 10:30 AM at the Charpak amphitheatre ...

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