Soft and Biological Matter
The joint Tel Aviv University-ESPCI Paris Workshop

Programme | Registration | Practical Information

The cooperation between Tel Aviv University and ESPCI Paris is on the move ! Already, on 20 September 2016, the first official step has taken place : the signature of a joint PhD thesis supervision. And now, it’s our pleasure to announce the second step !

On 6 and 7 of March, a joint workshop between Tel Aviv University and ESPCI Paris will take place in Paris.
This event will be an occasion to learn more and jointly discuss Soft and Biological Matter through about two dozens talks.
Below, the titles of the talks are enlisted for your convenience.



Registration (click here) is open until 31 January 2017.
Any further question ?
Do not hesitate to contact stephanie.ledoux (arobase)

Practical Information

The workshop will take place at the Pierre Gilles de Gennes Institute (IPGG) and is open to all, from PhD students to senior researchers, engineers, and administrative staff.
It is completely free of charges.

IPGG Amphitheatre 6 rue Jean Calvin 75005 Paris
  • Line 7 Subway station : Censier Daubenton
  • RER B Station : Luxembourg + 5 min Bus 21 or 27 (Bus stop : Berthollet - Vauquelin)

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Registration for TAU-ESPCI Paris Workshop

Registrations are now closed. See you soon in Paris ! Any further question ? You can contact 

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Francesc Sagues (Paris Science Chair and Universitat de Barcelona) Lundi 17 juin 11:30-12:30 - Bibliothèque PCT - F3.04 Driven (...) 

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Francesc Sagues (Paris Science Chair and Universitat de Barcelona)

Lundi 17 juin 11:30-12:30 - Bibliothèque PCT - F3.04

Driven nematic colloids : From anomalous diffusion to dynamic self-assembly

Colloids dispersed in nematic liquid crystals are conventionally studied in equilibrium, where elastic interactions coming from the distortion of the nematic matrix are dominant. Here we consider driven nematic colloids both from individual and collective perspectives. Driving mechanism is mostly based on a nonlinear electrophoretic mechanism, which has a tensorial nature and, thus, can be guided at will relative to the far field orientation of the nematics.

For particular anchoring conditions at the colloid/nematic interface we find super-diffusive behavior for the individual colloidal motion transversal to the driving direction. The anomalous exponent is found to largely depend on particle size and temperature. Some theoretical hints will be given to interpret experimental results.

Collective behavior is manifested by large dynamic assemblies organized around topological defects of the nematic environment. These clusters show distinctive inhomogeneous properties at the level of the radial distribution of the number density. Results are interpreted in terms of a model that encompasses different levels of particle interactions, beyond conventionally elastic, of very different origin and length scales.