
A. NestorBergmann^{},
G. B. Blanchard,
N. Hervieux,
A. G. Fletcher,
J. Étienne^{}, and
B. Sanson,
2022
Adhesionregulated junction slippage controls cell intercalation dynamics in an ApposedCortex Adhesion Model
PLOS Comput. Biol. 18(1):e1009812
The corresponding python code is distributed as an opensource free software

H. Chelly,
A. Jahangiri, M. Mireux, J. Étienne,
D.K. Dysthe,
C. Verdier
and
P. Recho,
2022
Cell crawling on a compliant substrate: a biphasic relation with linear friction
Int. J. NonLinear Mech 139:103897
Special issue–Nonlinear mechanics: the driving force of modern applied and industrial mathematics (in honour of Luigi Preziosi)
arχiv:2112.09997 (postprint) 
J. Fierling, A. John, B. Delorme,
A. Torzynski,
G. B. Blanchard,
C. M. Lye,
Anna Popkova, Grégoire Malandain,
B. Sanson,
J. Étienne^{},
C. Quilliet,
P. Marmottant
and M. Rauzi^{},
2022
Embryoscale epithelial buckling forms a propagating furrow that initiates gastrulation
Nature Comms. 13:3348.
Experimental and numerical data, Surface Evolver script · 
A. Pacquelet^{}, M. Jousseaume,
J. Étienne, and
G. Michaux,
2019
Simultaneous regulation of cytokinetic furrow and nucleus positions by cortical tension contributes to proper DNA segregation during late mitosis
Current Biology 29(22):37663777.e4, bioRxiv:626903 
A. Farutin^{},
J. Étienne, C. Misbah and
P. Recho,
2019
Crawling in a fluid
Phys. Rev. Lett. 123:118101, arχiv:1902.01730 
G. B. Blanchard^{},
J. Étienne^{}
and N. Gorfinkiel^{},
2018
From pulsatile apicomedial contractility to effective epithelial mechanics
Current Opinion in Genetics & Development 51:78–87. ⇒ publisher's website 
M. Dicko, P. Saramito,
G. B. Blanchard,
C. M. Lye,
B. Sanson and J. Étienne^{}, 2017
Geometry can provide longrange mechanical guidance for embryogenesis
PLOS Comput. Biol. 13(3):e1005443 
C. Roux, A. Duperray, V. Laurent, R. Michel, V. Peschetola, C. Verdier and J. Étienne^{}, 2016
Prediction of traction forces of motile cells
Interface Focus 6:20160042. ⇒ publisher's website

J. Étienne^{}, J. Fouchard, D. Mitrossilis, N. Bufi, P. DurandSmet and A. Asnacios, 2015
Cells as liquid motors: Mechanosensitivity emerges from collective dynamics of actomyosin cortex
Proc. Natl. Acad. Sci. USA 112(9):2740–2745. ⇒ publisher's website
My webpage devoted to this research 
P. F. Machado, J. Duque, J. Étienne, A. MartinezArias, G. B. Blanchard^{} and N. Gorfinkiel^{}, 2015
Emergent material properties of developing epithelial tissues
BMC Biology, “Beyond Mendel: modeling in biology” series, 13:98 ⇒ publisher's website 
J. Étienne^{}
and A. Duperray,
2011
Initial dynamics of cell spreading are governed by dissipation in the actin cortex
Biophys. J. 101(3):611–622. ⇒ publisher's website
Supplements, Movie of a cell spreading with its central, high fluorescence region highlighted

C. Verdier, J. Étienne, A. Duperray, and L. Preziosi,
2009
Review. Rheological properties of biological materials,
C. R. Physique 10(8):790–811. ⇒ publisher's website
Jocelyn Étienne
Researcher of the CNRS
LIPHY—Laboratoire Interdisciplinaire de Physique
Université Grenoble Alpes
— CNRS
Publications

L. F. Lang,
N. Dutta,
E. Scarpa,
B. Sanson,
C.B. Schönlieb
and J. Étienne, 2021
Joint motion estimation and source identification using convective regularisation with an application to the analysis of laser nanoablations
Springer book on Timedependent Problems in Imaging and Parameter Identification, bioRxiv:686261
Experimental data · Code 
G. Vitale, L. Laforgue, R. Michel, J. Étienne, V.M. Laurent, A. Duperray and C. Verdier, 2014
3D migration of cells solving an inverse problem
Inverse Problems – from Theory to Applications (IPTA2014), 6973 
R. Michel, V. Peschetola, J. Étienne, A. Duperray, G. Vitale, D. Ambrosi, L. Preziosi and C. Verdier, 2013
Mathematical framework for Traction Force Microscopy
ESAIM Proceedings 42:6183. 
R. Michel, V. Peschetola, B. Bedessem, J. Étienne, D. Ambrosi, A. Duperray, C. Verdier, 2012
Inverse problems for the determination of traction forces by cells on a substrate: a comparison of two methods
Comput. Methods Biomechanics Biomed. Eng 15(S1):2729. 
J. Étienne^{}, E. J. Hinch, J. Li,
2006
A LagrangianEulerian approach for the numerical simulation of freesurface flow of a viscoelastic material
J. NonNewtonian Fluid Mech. 136:157–166. ⇒ publisher's website 
J. Étienne, P. Saramito,
2005
A priori error estimates of the LagrangeGalerkin method for KazhikhovSmagulov type systems
C. R. Mathématiques 341:769–774

R. Bendick, D. McKenzie, J. Étienne,
2008
Topography associated with crustal flow in a convergent regime
Geophys. J. Int. 175:375–385. ⇒ publisher's website 
J. Étienne, M. Rastello, E. J. Hopfinger,
2006
Modelling and simulation of powdersnow avalanches
C.R. Mécanique 334:545–554  J. Étienne, E. J. Hopfinger, P. Saramito,
2005
Numerical simulations of high density ratio lockexchange flows
Phys. Fluids 17(3), 036601 ⇒ publisher's website 
J. Étienne, P. Saramito, E. J. Hopfinger,
2004
Numerical simulation of dense clouds on steep slopes: application to the powdersnow avalanches
Annals Glaciol. 38, 379–383
Numerical simulation of high density ratio gravity currents.
Application to the avalanches.
PhD Thesis, Institut National Polytechnique de Grenoble, September 2004
Flows of binary mixtures of incompressible, miscible fluids of very large density difference are considered. These flows are governed by the nonhomogeneous NavierStokes equations, coupled with a convectiondiffusion equation governing the evolution of the mixture composition. We present an algorithm that combines the method of characteristics, for the transport terms discretization, and the finite elements method with automatic mesh adaptation, and we prove that the solution obtained converges to the exact solution as the mesh and time steps go to zero. The robustness of this algorithm enables us to perform the first direct numerical simulations of lockexchange flows with high density ratios, and to validate them by comparison with experiments. Dense cloud flows on slopes are also simulated, allowing to analyse the influence of the density ratio on the powdersnow avalanche flows.
Jury: M. Olivier PIRONNEAU, M. JeanPaul VILA (reviewers), Mme Valérie PERRIER, M. Stéphane ZALESKI (examiners), M. Pierre SARAMITO, M. Emil HOPFINGER (PhD advisors).
the manuscript [in French, 3.5MB].