Mechanical response of active gels (2008)
Liverpool, T. B., Marchetti, M. C., Prost, J.
We study a model of an active gel of cross-linked semiflexible filaments with additional active linkers such as myosin II clusters. We show that the coupling of the elasticity of the semiflexible...
Generic phase diagram of active polar films (2008)
Voituriez, R., Joanny, J. F., Prost, J.
We study theoretically the phase diagram of compressible active polar gels such as the actin network of eukaryotic cells. Using generalized hydrodynamics equations, we perform a linear stability...
Membrane tension lowering induced by protein activity (2008)
Lacoste, D., Pecreaux, J., Joanny, J-F., Prost, J., Bassereau, P.
We present measurements of the fluctuation spectrum of giant vesicles containing bacteriorhodopsin (BR) pumps using video-microscopy. When the pumps are activated, we observe a significant increase...
Viscous Fingering-like Instability of Cell Fragments (2008)
Callan-Jones, A. C., Prost, J.
We present a novel flow instability that can arise in thin films of cytoskeletal fluids if the friction with the substrate on which the film lies is sufficiently strong. We consider a two...
Spontaneous flow transition in active polar gels (2006)
Voituriez, R., Joanny, J-F, Prost, J.
We study theoretically the effects of confinement on active polar gels such as the actin network of eukaryotic cells. Using generalized hydrodynamics equations derived for active gels, we predict, in...
Spontaneous flow transition in active polar gels (2005)
Voituriez, R., Joanny, J-F, Prost, J.
We study theoretically the effects of confinement on active polar gels such as the actin network of eukaryotic cells. Using generalized hydrodynamics equations derived for active gels, we predict, in...
Spontaneous flow transition in active polar gels (2005)
Voituriez, R., Joanny, J-F, Prost, J.
We study theoretically the effects of confinement on active polar gels such as the actin network of eukaryotic cells. Using generalized hydrodynamics equations derived for active gels, we predict, in...
Spontaneous flow transition in active polar gels (2005)
Voituriez, R., Joanny, J-F, Prost, J.
We study theoretically the effects of confinement on active polar gels such as the actin network of eukaryotic cells. Using generalized hydrodynamics equations derived for active gels, we predict, in...
Generic theory of active polar gels: a paradigm for cytoskeletal dynamics (2005)
Kruse, K., Joanny, J. F., Jülicher, F., Prost, J., Sekimoto, K.
Role of tensile stress in action gels and a symmetry-breaking instability (2004)
Sekimoto,K., Prost,J., Jülicher,F., Boukellal,H., Bernheim-Grosswasser,A.
Asters, vortices, and rotating spirals in active gels of polar filaments (2004)
Kruse, K., Joanny, J. F., Jülicher, F., Prost, J., Sekimoto, K.
Role of tensile stress in action gels and a symmetry-breaking instability (2004)
Sekimoto, K., Prost, J., Jülicher, F., Boukellal, H., Bernheim-Grosswasser, A.
Detachment of molecular motors under tangential loading (2001)
Parmeggiani, A., Julicher, F., Peliti, L., Prost, J.
We introduce a general framework to study the processivity of molecular motors moving along a polar filament and discuss the average time spent attached to the filament as a function of a...
Active membrane fluctuations studied by micropipet aspiration (2001)
Manneville, JB, Bassereau, P, Ramaswamy, S, Prost, J
We present a detailed analysis of the micropipet experiments recently reported by J-B. Manneville et al., [Phys. Rev. Lett. 82, 4356 (1999)], including a derivation of the expected behavior of the...
Active Membrane Fluctuations Studied by Micropipet Aspiration (2001)
Manneville, J-B., Bassereau, P., Ramaswamy, S., Prost, J.
We present a detailed analysis of the micropipet experiments recently reported in J-B. Manneville et al., Phys. Rev. Lett. 82, 4356--4359 (1999), including a derivation of the expected behaviour of...
Active membrane fluctuations studied by micropipet aspiration (2001)
Manneville, JB, Bassereau, P, Ramaswamy, S, Prost, J
We present a detailed analysis of the micropipet experiments recently reported by J-B. Manneville et al., [Phys. Rev. Lett. 82, 4356 (1999)], including a derivation of the expected behavior of the...
Self-organized Beating and Swimming of Internally Driven Filaments (1998)
Camalet, S., Julicher, F., Prost, J.
We study a simple two-dimensional model for motion of an elastic filament subject to internally generated stresses and show that wave-like propagating shapes which can propel the filament can be...
Antisuperconductors: Properties of Layered Compounds with Coupling (1995)
In this note, we consider properties of a hypothetical superconductor composed of Josephson-coupled microscopic layers with tunneling energy minimized at a phase difference of π. The non-zero...
Antisuperconductors: Properties of Layered Compounds with Coupling (1995)
In this note, we consider properties of a hypothetical superconductor composed of Josephson-coupled microscopic layers with tunneling energy minimized at a phase difference of π. The non-zero...
Antisuperconductors: Properties of Layered Compounds with Coupling (1995)
In this note, we consider properties of a hypothetical superconductor composed of Josephson-coupled microscopic layers with tunneling energy minimized at a phase difference of π. The non-zero...
Fluctuation forces and the Devil's staircase of ferroelectric smectic C*'s. (1994)
We show that there exists a novel long range interaction in ferroelectric Sm-C* materials due to thermally excited polarization waves. We propose that this interaction is the long range repulsion...
Theory of longitudinal ferroelectric smectics (1994)
Prost, J., Bruinsma, R., Tournilhac, F.
Recently, it was discovered that a-chiral smectic layers can undergo a phase transition into a polar smectic. The new phase is fundamentally different from that of the existing chiral Sm-C*...
Fluctuation forces and the Devil's staircase of ferroelectric smectic C*'s. (1994)
We show that there exists a novel long range interaction in ferroelectric Sm-C* materials due to thermally excited polarization waves. We propose that this interaction is the long range repulsion...
Theory of longitudinal ferroelectric smectics (1994)
Prost, J., Bruinsma, R., Tournilhac, F.
Recently, it was discovered that a-chiral smectic layers can undergo a phase transition into a polar smectic. The new phase is fundamentally different from that of the existing chiral Sm-C*...
Fluctuation forces and the Devil's staircase of ferroelectric smectic C*'s. (1994)
We show that there exists a novel long range interaction in ferroelectric Sm-C* materials due to thermally excited polarization waves. We propose that this interaction is the long range repulsion...
Theory of longitudinal ferroelectric smectics (1994)
Prost, J., Bruinsma, R., Tournilhac, F.
Recently, it was discovered that a-chiral smectic layers can undergo a phase transition into a polar smectic. The new phase is fundamentally different from that of the existing chiral Sm-C*...
Dynamics of Lyotropic Lamellar Phases (1993)
Ramaswamy, Sriram, Prost, J, Cai, W, Lubensky, TC
We model dilute lyotropic smectics as a periodic stack of compressible-fluid membranes with width w separated by an incompressible background fluid of thickness d-w. We calculate the dynamical modes...
Dynamics of Lyotropic Lamellar Phases (1993)
Ramaswamy, Sriram, Prost, J, Cai, W, Lubensky, TC
We model dilute lyotropic smectics as a periodic stack of compressible-fluid membranes with width w separated by an incompressible background fluid of thickness d-w. We calculate the dynamical modes...
“Pseudo-Casimir” effect in liquid crystals (1992)
Ajdari, A., Duplantier, B., Hone, D., Peliti, L., Prost, J.
We show that the boundary conditions imposed on the director fluctuations in nematics by the presence of rigid walls give rise to long-range forces analogous to the Casimir effect in electrodynamics....
“Pseudo-Casimir” effect in liquid crystals (1992)
Ajdari, A., Duplantier, B., Hone, D., Peliti, L., Prost, J.
We show that the boundary conditions imposed on the director fluctuations in nematics by the presence of rigid walls give rise to long-range forces analogous to the Casimir effect in electrodynamics....
“Pseudo-Casimir” effect in liquid crystals (1992)
Ajdari, A., Duplantier, B., Hone, D., Peliti, L., Prost, J.
We show that the boundary conditions imposed on the director fluctuations in nematics by the presence of rigid walls give rise to long-range forces analogous to the Casimir effect in electrodynamics....
Stability of permeative flows in 1 dimensionally ordered systems (1991)
Prost, J., Pomeau, Y., Guyon, E.
Layered structures are met in dissipative systems, such as Rayleigh Bénard rolls, as well as in liquid crystalline phases (smectics and cholesterics). We present here a general description, in the...
Stability of permeative flows in 1 dimensionally ordered systems (1991)
Prost, J., Pomeau, Y., Guyon, E.
Layered structures are met in dissipative systems, such as Rayleigh Bénard rolls, as well as in liquid crystalline phases (smectics and cholesterics). We present here a general description, in the...
Stability of permeative flows in 1 dimensionally ordered systems (1991)
Prost, J., Pomeau, Y., Guyon, E.
Layered structures are met in dissipative systems, such as Rayleigh Bénard rolls, as well as in liquid crystalline phases (smectics and cholesterics). We present here a general description, in the...
Crumpling and second sound in lyotropic lamellar phases (1990)
Lubensky, T.C., Prost, J., Ramaswamy, S.
We study relative concentration fluctuations in two component lamellar smectic liquid crystals consisting of surfactant layers of width w separated by a background fluid and show that these...
Crumpling and second sound in lyotropic lamellar phases (1990)
Lubensky, T.C., Prost, J., Ramaswamy, S.
We study relative concentration fluctuations in two component lamellar smectic liquid crystals consisting of surfactant layers of width w separated by a background fluid and show that these...
Crumpling and second sound in lyotropic lamellar phases (1990)
Lubensky, T.C., Prost, J., Ramaswamy, S.
We study relative concentration fluctuations in two component lamellar smectic liquid crystals consisting of surfactant layers of width w separated by a background fluid and show that these...
Fluctuations in membranes with reduced symmetry (1989)
We discuss the effects of in-plane ordering of amphiphilic membranes on the statistics of their shape fluctuations. Effects of flexo- and ferroelectricity as well as of several kinds of orientational...
Nallet, F., Roux, D., Prost, J.
Dynamic light scattering measurements on oriented samples of dilute lyotropic smectics have been performed. The hydrodynamics of two-component smectics A is applied to describe the fluctuation...
Fluctuations in membranes with reduced symmetry (1989)
We discuss the effects of in-plane ordering of amphiphilic membranes on the statistics of their shape fluctuations. Effects of flexo- and ferroelectricity as well as of several kinds of orientational...
Nallet, F., Roux, D., Prost, J.
Dynamic light scattering measurements on oriented samples of dilute lyotropic smectics have been performed. The hydrodynamics of two-component smectics A is applied to describe the fluctuation...
Fluctuations in membranes with reduced symmetry (1989)
We discuss the effects of in-plane ordering of amphiphilic membranes on the statistics of their shape fluctuations. Effects of flexo- and ferroelectricity as well as of several kinds of orientational...
Nallet, F., Roux, D., Prost, J.
Dynamic light scattering measurements on oriented samples of dilute lyotropic smectics have been performed. The hydrodynamics of two-component smectics A is applied to describe the fluctuation...
New critical points in frustrated smectics (1985)
Barois, P., Prost, J., Lubensky, T.C.
A phenomenological model for frustrated smectics with competition for order at incommensurate wavevectors k1 and k2 is used to study phase diagrams and x-ray scattering intensity within mean field...
New critical points in frustrated smectics (1985)
Barois, P., Prost, J., Lubensky, T.C.
A phenomenological model for frustrated smectics with competition for order at incommensurate wavevectors k1 and k2 is used to study phase diagrams and x-ray scattering intensity within mean field...
New critical points in frustrated smectics (1985)
Barois, P., Prost, J., Lubensky, T.C.
A phenomenological model for frustrated smectics with competition for order at incommensurate wavevectors k1 and k2 is used to study phase diagrams and x-ray scattering intensity within mean field...
Baumann, C., Marcerou, J.P., Rouillon, J.C., Prost, J.
We report and discuss experimental results concerning pretransitional angular correlations in the isotropic phases of octyl and nonylcyanobiphenyls, truxene hexaalkanoate and triphenylene...
Two-dimensional aggregation and crystallization of a colloidal suspension of latex spheres (1984)
Richetti, P., Prost, J., Barois, P.
We present experimental investigations of two-dimensional crystallization of calibrated Brownian spheres in water. The interaction monitored by an external AC electric field is attractive in a wide...
Baumann, C., Marcerou, J.P., Rouillon, J.C., Prost, J.
We report and discuss experimental results concerning pretransitional angular correlations in the isotropic phases of octyl and nonylcyanobiphenyls, truxene hexaalkanoate and triphenylene...
Two-dimensional aggregation and crystallization of a colloidal suspension of latex spheres (1984)
Richetti, P., Prost, J., Barois, P.
We present experimental investigations of two-dimensional crystallization of calibrated Brownian spheres in water. The interaction monitored by an external AC electric field is attractive in a wide...
Baumann, C., Marcerou, J.P., Rouillon, J.C., Prost, J.
We report and discuss experimental results concerning pretransitional angular correlations in the isotropic phases of octyl and nonylcyanobiphenyls, truxene hexaalkanoate and triphenylene...
Two-dimensional aggregation and crystallization of a colloidal suspension of latex spheres (1984)
Richetti, P., Prost, J., Barois, P.
We present experimental investigations of two-dimensional crystallization of calibrated Brownian spheres in water. The interaction monitored by an external AC electric field is attractive in a wide...
Gohin, A., Destrade, C., Gasparoux, H., Prost, J.
We report on the pretransitional behaviour in isotropic phases of compounds belonging to chemical series such that the transition temperatures T N1 and TNA (I = isotropic, N = nematic, A = smectic A)...
Gohin, A., Destrade, C., Gasparoux, H., Prost, J.
We report on the pretransitional behaviour in isotropic phases of compounds belonging to chemical series such that the transition temperatures T N1 and TNA (I = isotropic, N = nematic, A = smectic A)...
Gohin, A., Destrade, C., Gasparoux, H., Prost, J.
We report on the pretransitional behaviour in isotropic phases of compounds belonging to chemical series such that the transition temperatures T N1 and TNA (I = isotropic, N = nematic, A = smectic A)...
Critical behaviour of second sound near the smectic A nematic phase transition (1981)
We show that the smectic A compressional elastic constant, measured in the (100 kHz, q ≃ a few 102 cm-1) range exhibits a critical behaviour consistent with either the helium analogy (8 CB) or...
Escape from incommensurability : the two-dimensionally ordered S Ã antiphase (1981)
Barois, P., Coulon, C., Prost, J.
The study of the frustrated SA free energy allows the theoretical understanding of the recently discovered SÃ antiphase, as two dimensional escape to incommensurate phases. The picture obtained...
Simple example of fluctuation induced reentrant behaviour (1981)
We show that a quasi-one dimensional system, described by two coupled Ising order parameters, can show a reentrant behaviour. The high temperature phase is recovered when the two order parameters...
Critical behaviour of second sound near the smectic A nematic phase transition (1981)
We show that the smectic A compressional elastic constant, measured in the (100 kHz, q ≃ a few 102 cm-1) range exhibits a critical behaviour consistent with either the helium analogy (8 CB) or...
Escape from incommensurability : the two-dimensionally ordered S Ã antiphase (1981)
Barois, P., Coulon, C., Prost, J.
The study of the frustrated SA free energy allows the theoretical understanding of the recently discovered SÃ antiphase, as two dimensional escape to incommensurate phases. The picture obtained...
Simple example of fluctuation induced reentrant behaviour (1981)
We show that a quasi-one dimensional system, described by two coupled Ising order parameters, can show a reentrant behaviour. The high temperature phase is recovered when the two order parameters...
Critical behaviour of second sound near the smectic A nematic phase transition (1981)
We show that the smectic A compressional elastic constant, measured in the (100 kHz, q ≃ a few 102 cm-1) range exhibits a critical behaviour consistent with either the helium analogy (8 CB) or...
Escape from incommensurability : the two-dimensionally ordered S Ã antiphase (1981)
Barois, P., Coulon, C., Prost, J.
The study of the frustrated SA free energy allows the theoretical understanding of the recently discovered SÃ antiphase, as two dimensional escape to incommensurate phases. The picture obtained...
Simple example of fluctuation induced reentrant behaviour (1981)
We show that a quasi-one dimensional system, described by two coupled Ising order parameters, can show a reentrant behaviour. The high temperature phase is recovered when the two order parameters...
"SECOND SOUND" PROPAGATION AND THE SMECTIC RESPONSE FUNCTION (1979)
We present a study of the smectic response function close to the smectic A to nematic transition, as a function of temperature. The progressive evolution from an overdamped to an underdamped behavior...
Landau theory of the reentrant nematic-smectic A phase transition (1979)
The reentrant, nematic to smectic A phase transition is shown to follow from the Landau theory if one assumes the existence of an optimum density for smectic ordering. The shape of the coexistence...
Smectic A to smectic A phase transition (1979)
We investigate properties of the Meyer-Lubensky free energy introduced in the description of the nematic to smectic A phase transition, and show that a new transition from a smectic A to another...