Csem Centre Suisse D'electronique Et De Microtechnique Sa Recherche Et Developpement

Csem Centre Suisse D'electronique Et De Microtechnique Sa-Recherche Et Dévelopment

Emmanuel Scolan

Rolf Steiger

Raphaël Pugin

Bernard Wenger

An optical sensor () for detecting a chemical species includes a substrate (), a mesoporous matrix () disposed on the substrate, and a microporous matrix () disposed within the mesoporous matrix. The microporous matrix () includes an indicator dye () dispersed therein, the indicator dye () exhibiting changes in its optical properties in response to the presence of the chemical species. This arrangement significantly increases the amount of dye present, while allowing the medium to be analyzed greater access through the porous structure, thereby increasing the performance of the sensor.

Optical sensor for detecting a chemical species

A method of treatment of outdoor equipment for reducing ice adhesion thereon, the outdoor equipment defining a substrate on which a layer of linkers is intended to be coupled, the linkers being bi-functional and including: a first reacting group able to couple in a stable way in environmental conditions with the substrate, and a second reacting group able to generate a covalent bond stable in environmental conditions with polysaccharides, the method includes the steps of: coupling the linkers on at least an area of the equipment to obtain a layer of linkers coupled stably in environmental conditions with the substrate; and making react some polysaccharides on the layer of linkers to bind them with a covalent bond stable in environmental conditions with the second reacting group of the linkers and forming a layer of polysaccharides on the layer of linkers.

Method of treatment of outdoor equipment with a polysaccharide coating

The assembly is made up of: a) a support including a mesoporous coating whose pores have an average diameter dimensioned so as to enable molecules from the family of cyanines to penetrate them, and b) a layer of molecules from the family of cyanines and organized into J-aggregates within the pores of the coating. The assembly moreover includes Quantum Dots located within the same pores as those containing the J-aggregates, the Quantum Dots maintaining J-aggregates structure. A method for producing such an assembly is also described.

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Neuchatel, Switzerland

Emmanuel Scolan