Photopolymerizable silicone materials forming semipermeable...

G - Physics – 03 – F

Patent

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G03F 7/075 (2006.01) G01N 27/40 (2006.01)

Patent

CA 2575238

A method for preparing sensing devices (biosensors) includes the steps of: (1) applying a photopatternable silicone composition to a surface in a sensing device to form a film, (2) photopatterning the film by a process comprising exposing the film to radiation through a photomask without the use of a photoresist to produce an exposed film; (3) removing regions of the non- exposed film with a developing solvent to form a patterned film, which forms a permselective layer or an analyte attenuation layer covering preselected areas of the sensing device.

L'invention concerne un procédé pour préparer des dispositifs capteurs (biocapteurs), qui consiste (1) à appliquer une composition de silicone photostructurable sur une surface dans un dispositif capteur pour former un film, (2) à photostructurer ce film par un processus consistant à exposer ce film à un rayonnement à travers un photomasque sans résine photosensible pour produire un film exposé, (3) à retirer des zones du film non exposé à l'aide d'un solvant de développement pour former un film structuré, formant une couche à perméabilité sélective ou une couche d'atténuation d'analyte couvrant des zones présélectionnées du dispositif capteur.

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