Centre National De La Recherche Scientifique

UniversitÉde Strasbourg

Firmenich Sa

Université Louis Pasteur

Nicolas Giuseppone

Andreas Herrmann

Bernard Doudin

Jean-François Dayen

Vina Faramarzi

Emilie Moulin

Frederic Niess

Jean-Marie Lehn

Daniel Benczedi

Vera Tchakalova

Gero Decher

Eric Lutz

Joseph John Armao, Iv

Jean-Francois Dayen

Joseph Armao

Cleavable surfactants of formula (I) having a total hydrophilic-lipophilic balance (HLB) of between 3 and 18 and wherein A is a group capable of releasing a flavor or fragrance aldehyde of formula (R)CHO or a flavor or fragrance ketone of formula (R)(R)CO and is of formula wherein the wavy line indicates the location of the bond between L and A; Rand Rrepresent a hydrogen atom or a saturated or unsaturated C-Chydrocarbon group, provided that at least one of the Ror Rgroups has 6 consecutive carbon atoms and that both Rand Rtaken together comprise a maximum of 18 carbon atoms; and L is a linear, branched or cyclic, saturated or unsaturated Cto Chydrocarbon group. These surfactants solubilize and/or stabilize flavor and fragrance aldehydes and ketones in an aqueous environment and at the same time to control their release by hydrolysis.

Cleavable surfactant

Some embodiments are directed to optical conductors comprising one or more fibrillar organic supramolecular species including an association of triarylamines, methods of preparation and applications thereof as optical and plasmonic waveguides.

Optical plasmonic conductors comprising one or more fibrillar organic supramolecular species

A method is provided for modifying a surface of a solid conducting material, which includes applying a potential difference between this surface and a surface of another conducting solid material positioned facing it, and wherein, simultaneously, the surface (S) is put into contact with a liquid medium comprising in solution triarylamines (I): while subjecting these triarylamines (I) to electromagnetic radiation, at least partly converting them at into triarylammonium radicals. Also provided is a conducting device which includes two conducting metal materials, the surfaces of which, (S) and (S') respectively, are electrically interconnected through an organic material comprising conducting fibrillar organic supramolecular species comprising an association of triarylamines of formula (I).

Electric conduction through supramolecular assemblies of triarylamines

The present invention relates to a delivery system based on a film of an imine forming liquid crystalline phase, mixed with at least with one biologically active substance, to which a constant or variable electric field can be applied. The delivery system can be used as a delivery system for biologically active substances such as flavors, fragrances, bactericides, fungicides, insecticides, insect attractants or repellents, agrochemicals or pharmaceuticals.

Imine based liquid crystals for the controlled release of bioactive materials

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Strasbourg, France

Nicolas Giuseppone