128 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- National University of SingaporeSG28 papers
- Centre National de la Recherche ScientifiqueFR19 papers
- Institut CurieFR13 papers
- Physique des Cellules et CancersFR11 papers
- Université Paris Sciences et LettresFR11 papers
- Institut Jacques MonodFR5 papers
- Sorbonne UniversitéFR5 papers
- Université Paris DiderotFR5 papers
- Institut Lumière MatièreFR4 papers
- Laboratoire Matière et Systèmes ComplexesFR4 papers
- Lyon 1 UniversitéFR4 papers
- Max Planck Institute for the Physics of Complex SystemsDE4 papers
30 papers
Active nematic flows on curved surfaces
Samuel Bell, Shao-Zhen Lin, Jean-François Rupprecht +1
Cell monolayers are a central model system to tissue biophysics. In vivo, epithelial tissues are curved on the scale of microns, and curvature's role in the onset of spontaneous ti…
Theory of nematic and polar active fluid surfaces
Guillaume Salbreux, Frank Jülicher, Jacques Prost +1
We derive a fully covariant theory of the hydrodynamics of nematic and polar active surfaces, subjected to internal and external forces and torques. We study the symmetries of pola…
Collision-induced torque mediates transition of chiral dynamic patterns formed by active particles
Tetsuya Hiraiwa, Ryo Akiyama, Daisuke Inoue +2
It is still challenging to control dynamic self-organization patterns of self-propelled particles. Although varieties of patterns associated with chirality have been observed, esse…
Hydraulic and electric control of cell spheroids
Charlie Duclut, Jacques Prost, Frank Jülicher
We use a theoretical approach to examine the effect of a radial fluid flow or electric current on the growth and homeostasis of a cell spheroid. Such conditions may be generated by…
Hyperspectral Infrared Microscopy With Visible Light
Anna V. Paterova, Sivakumar M. Maniam, Hongzhi Yang +2
Hyperspectral microscopy is an imaging technique that provides spectroscopic information with high spatial resolution. When applied in the relevant wavelength region, such as in th…
Liquid phase separation controlled by pH
Omar Adame-Arana, Christoph A. Weber, Vasily Zaburdaev +2
We present a minimal model to study liquid phase separation in a fixed pH ensemble. The model describes a mixture composed of macromolecules that exist in three different charge st…
Collective cell migration of epithelial cells driven by chiral torque generation
Takaki Yamamoto, Tetsuya Hiraiwa, Tatsuo Shibata
Various multicellular tissues show chiral morphology. Experimental studies have shown this can originate from cell chirality. However, no theory has been proposed to connect the ce…
Fluid pumping and active flexoelectricity can promote lumen nucleation in cell assemblies
Charlie Duclut, Niladri Sarkar, Jacques Prost +1
We discuss the physical mechanisms that promote or suppress the nucleation of a fluid-filled lumen inside a cell assembly or a tissue. We discuss lumen formation in a continuum the…
A migrating epithelial monolayer flows like a Maxwell viscoelastic liquid
S. Tlili, M. Durande, C. Gay +3
We perform a bidimensional Stokes experiment in an active cellular material: an autonomously migrating monolayer of Madin-Darby Canine Kidney (MDCK) epithelial cells flows around a…
Fast determination of coarse grained cell anisotropy and size in epithelial tissue images using Fourier transform
M. Durande, S. Tlili, T. Homan +3
Mechanical strain and stress play a major role in biological processes such as wound healing or morphogenesis. To assess this role quantitatively, fixed or live images of tissues a…
Kalman inversion stress microscopy
V. Nier, G. Peyret, J. d'Alessandro +3
Although mechanical cues are crucial to tissue morphogenesis and development, the tissue mechanical stress field remains poorly characterized. Given traction force timelapse movies…
Breakdown of effective temperature, power law interactions and self-propulsion in a momentum conserving active fluid
Amit Singh Vishen, Jacques Prost, Madan Rao
Simplest extensions of single particle dynamics in momentum conserving active fluid - that of an active suspension of two colloidal particles or a single particle confined by a wal…
Gliding filament system giving both orientational order and clusters in collective motion
Sakurako Tanida, Ken'ya Furuta, Kaori Nishikawa +4
Active matter consists of self-propelled elements exhibits fascinating collective motions ranging from biological to artificial systems. Among wide varieties of active matter syste…
Fluidization of epithelial sheets by active cell rearrangements
Matej Krajnc, Sabyasachi Dasgupta, Primož Ziherl +1
We theoretically explore fluidization of epithelial tissues by active T1 neighbor exchanges. We show that the geometry of cell-cell junctions encodes important information about th…
Transfer-matrix calculations of the effects of tension and torque constraints on DNA-protein interactions
Artem K. Efremov, Jie Yan
Organization and maintenance of the chromosomal DNA in living cells strongly depends on the DNA interactions with a plethora of DNA-binding proteins. Single-molecule studies show t…
Soft inclusion in a confined fluctuating active gel
Amit Singh Vishen, Jean-Francois Rupprecht, G. V. Shivashankar +2
We study stochastic dynamics of a point and extended inclusion within a one dimensional confined active viscoelastic gel. We show that the dynamics of a point inclusion can be desc…
Maximal fluctuations of confined actomyosin gels: dynamics of the cell nucleus
Jean-Francois Rupprecht, Amit Singh Vishen, G. V. Shivashankar +2
We investigate the effect of stress fluctuations on the stochastic dynamics of an inclusion embedded in a viscous gel. We show that, in non-equilibrium systems, stress fluctuations…
The escape problem for mortal walkers
D. S. Grebenkov, J. -F. Rupprecht
We introduce and investigate the escape problem for random walkers that may eventually die, decay, bleach, or lose activity during their diffusion towards an escape or reactive reg…
Collective cell migration without proliferation: density determines cell velocity and wave velocity
S. Tlili, E. Gauquelin, B. Li +4
Collective cell migration contributes to embryogenesis, wound healing and tumor metastasis. Cell monolayer migration experiments help understanding what determines the movement of…
Inference of internal stress in a cell monolayer
V. Nier, S. Jain, C. T. Lim +3
We combine traction force data with Bayesian inversion to obtain an absolute estimate of the internal stress field of a cell monolayer. The method, Bayesian inversion stress micros…
Optimal search strategies of run-and-tumble walks
Jean-Francois Rupprecht, Olivier Bénichou, Raphael Voituriez
The run-and-tumble walk, consisting in randomly reoriented ballistic excursions, models phenomena ranging from gas kinetics to bacteria motility. We evaluate the mean time required…
Homeostatic Fluctuations of a Tissue Surface
Thomas Risler, Aurélien Peilloux, Jacques Prost
We study the surface fluctuations of a tissue with a dynamics dictated by cell-rearrangement, cell-division, and cell-death processes. Surface fluctuations are calculated in the ho…
Velocity condensation for magnetotactic bacteria
Jean-Francois Rupprecht, Nicolas Waisbord, Christophe Ybert +2
Magnetotactic swimmers tend to align along magnetic field lines against stochastic reorientations. We show that the swimming strategy, e.g. active Brownian motion versus run-and-tu…
Cell division: a source of active stress in cellular monolayers
Amin Doostmohammadi, Sumesh P. Thampi, Thuan B. Saw +3
We introduce the notion of cell division-induced activity and show that the cell division generates extensile forces and drives dynamical patterns in cell assemblies. Extending the…