Home  >  People  >  Léa-Lætitia Pontani
CNRS Research Scientist ORCID 0000-0002-6515-3441
Office (room 410)
Lab (room 421)
(+33) 1 44 27 47 14
(+33) 1 44 27 22 71

Research interests

Mechanics of integrated and artificial biological systems

Presentation

Lea-Laetitia Pontani is interested in studying the mechanical properties of cells and tissues in simplified biomimetic frameworks. For instance, during her PhD in the group of Dr. Cécile Sykes at the Curie Institute, she built and characterized a biomimetic system of the actin cytoskeleton in vitro. For her post-doc she joined the group of Jasna Brujic within the Center for Soft Matter Research at New York University. She first investigated the physics of jammed matter through confocal imaging of dense emulsions, seeking to build theoretical frameworks for the description of these out-of-equilibrium systems. In parallel she designed the synthesis of biomimetic emulsions that mimic multicellular assemblies such as biological tissues. Eventually, these biomimetic emulsions became a widely used platform in the group and the CSMR and are now used for various purposes, such as directed self-assembly of DNA functionalized emulsions.

For her research at LJP she seeks to understand the physical basis of collective remodeling in biological tissues by studying the response of these biomimetic emulsions under mechanical constraints. She also works with Alexis Prevost and Elie Wandersman on the development and characterization of biomimetic systems for the study of tactile perception at the microscopic level.

 


Publications

2023

Push-pull mechanics of E-cadherin ectodomains in biomimetic adhesions - Biophysical Journal (Jul. 2023)
K. Nagendra , A. Izzet , N.B. Judd , R. Zakine , L. Friedman , O.J. Harrison , L.L. Pontani , L. Shapiro , B. Honig , J. Brujic
  URL Full text PDF Bibtex doi:https://doi.org/10.1016/j.bpj.2023.07.026
Interaction of the mechanosensitive microswimmer Paramecium with obstacles - Royal Society Open Science (May. 2023)
N. Escoubet , R. Brette , L.L. Pontani , A.M. Prevost
  URL Full text PDF Bibtex doi:10.1098/rsos.221645
A simple method to make, trap and deform a vesicle in a gel - Scientific Reports (Apr. 2023)
P. Tapie , L. Montel , A. Prevost , L.L. Pontani , E. Wandersman
  URL Full text PDF Bibtex doi:https://doi.org/10.1038/s41598-023-31996-9
An electrophysiological and kinematic model of Paramecium, the “swimming neuron” - PLOS Computational Biology (Feb. 2023)
I. Elices , A. Kulkarni , N. Escoubet , L.L. Pontani , A.M. Prevost , R. Brette
  URL Full text PDF Bibtex doi:10.1371/journal.pcbi.1010899

2022

A scalable assay for chemical preference of small freshwater fish - Frontiers in Behavioral Neuroscience (Sep. 2022)
B. Gallois , L.L. Pontani , G. Debrégeas , R. Candelier
  URL Full text PDF Bibtex doi:10.3389/fnbeh.2022.990792

2021

A bending fluctuation-based mechanism for particle detection by ciliated structures - PNAS (Sep. 2021)
J.B. Thomazo , B. Le Réverend , L.L. Pontani , A. Prevost , E. Wandersman
  URL Full text PDF Bibtex doi:https://doi.org/10.1073/pnas.2020402118
Adhesion as a trigger of droplet polarization in flowing emulsions - Soft Matter (Mar. 2021)
I. Golovkova , L. Montel , F. Pan , E. Wandersman , A. Prevost , T. Bertrand , L.L. Pontani
  URL Full text PDF Bibtex doi:10.1039/d1sm00097g

2020

A simple device to immobilize protists for electrophysiology and microinjection - Journal of Experimental Biology (Jun. 2020)
A. Kulkarni , I. Elices , N. Escoubet , L.L. Pontani , A.M. Prevost , R. Brette
  URL Full text PDF Bibtex doi:10.1242/jeb.219253

2019

Diffusion through Nanopores in Connected Lipid Bilayer Networks - Phys. Rev. Lett. (Aug. 2019)
M. Valet , L.L. Pontani , R. Voituriez , E. Wandersman , A. Prevost
  URL Full text PDF Bibtex doi:10.1103/PhysRevLett.123.088101

2018

Quasistatic Microdroplet Production in a Capillary Trap - Phys. Rev. Applied (Feb. 2018)
M. Valet , L.L. Pontani , A. Prevost , E. Wandersman
  URL Full text PDF Bibtex doi:https://doi.org/10.1103/PhysRevApplied.9.014002