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CNRS
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Post-doctorant (H/F), Perméabilité photo-commutable d’émulsions aqueuses stabilisées CNRS in France
Degree Level
Postdoc
Field of study
Chemistry
Funding
Available
Deadline
Nov 19, 2026
Country
France
University
CNRS
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About this position
This postdoctoral project at the CNRS explores how to control the permeability of water-in-water emulsions stabilized by self-assembled lyotropic phases at the droplet interface. These emulsions, formed from phase separation in aqueous polymer solutions such as PEG and dextran, are attractive for encapsulation and controlled release of hydrophilic molecules without oil or organic solvent.
The research sits within the ANR SHEILA project and focuses on making interfacial transport stimulus-responsive. The team is investigating lamellar phases that form multilamellar, structured, and initially impermeable membranes around droplets, then studying how structural defects and pores influence the transport of molecular probes. A key goal is to achieve local, fast, and reversible control of permeability using light.
The project will explore photoresponsive surfactants and photoacids to alter interfacial properties and trigger localized permeability changes. A major part of the work will use a recently developed microscopy platform in the laboratory, capable of spatially structured illumination, multi-wavelength control, and precise temperature regulation. The postdoctoral researcher will help program illumination strategies and image-analysis routines to address individual droplets, or even selected regions within a single droplet, and to open or close pores on demand.
The wider scientific context combines soft-matter interfacial physics with functional materials design. The project aims to create controllable droplet-to-droplet exchange, timed microreactors, and quantitative studies of defect nucleation and healing in lamellar phases.
Funding details
Available
How to apply
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