PRESENTATION OF THE LABORATORY
    The Laboratory has been created in 2001.The main activity is focused on making and assembling colloïds. These assembled structures  are devoted to become precursors for new materials and to offer new routes for biomedical diagnostic.
     

RESEARCH FIELDS

Magnetic Emulsions.
   The group is specialized  in colloïds synthesis and particularly  interested in magnetic systems. The main objective concerns  the design of submicronic  calibrated particles possessing a strong aimentation and whose surface are possibly grafted by various types of molecules  and particularly  by biological molecules. The basic approach consists in a fragmentation process followed by droplet surface polymerization and functionalization

One dimensional colloidal aggregation.
    An other activity concerns the investigation of colloidal surfaces  reactivity  under magnetic field, in the presence of coupling agents. By mixing   antigens  and colloids which are grafted by the specific antibodies, permanent  on dimensional particle chains are formed under magnetic field. We study the role of colloidal magnetic forces on the antibody –antigen  association kinetic within these one dimensional assembly.

 Assemblages and Nanostructures.
   This very recent activity aims to set assemblage protocoles of colloidal particles. We focus on both linear and flexible magnetic assemblages  and tetraedric semi magnetic structures.

Double globule with variable rigidity.
    Skills in colloid synthesis is applied to double globule preparation with variable rigidity. Each globule is filled of smaller aqueous reservoirs. In the case of very soft structures we are interested in the wetting ability of such globules onto living cells surfaces. Hard structures are good candidates for drug transport and delivering. From a general point of view we are concerned with the wetting properties and the mechanical resistance of these structures.

 

Adhesion of functionnalized emulsions (Picture Jacques Fattaccioli)

Flexible magnetic filaments (Picture Cécile Goubault)