NANOPOROUS ALDEHYDE-BASED MATERIAL WITH DIRECT OPTICAL TRANSDUCTION

• Main Authors: TRAN-THI, THU-HOA, PAOLACCI, HELENE
• Format: Patent
• Language: English; French
• Published: 22.03.2007
• Subjects: GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TESTING

The invention concerns a method for detecting and/or assaying and/or capturing at least one aldehyde, preferably formaldehyde, including a step of contacting a gas stream with a material comprising a nonporous metal oxide sol-gel matrix, said matrix containing at least one probe molecule bearing at least one reactive function capable of reacting with at least one aldehyde function. The invention also concerns the material for implementing said method, a method for preparing same, and sensors incorporating such materials. Procédé de détection et/ou de dosage et/ou de piégeage d'au moins un aldéhyde, préférentiellement le formaldéhyde, comprenant une étape de mise en contact d'un flux gazeux avec un matériau comprenant une matrice nanoporeuse sol-gel d'oxydes métalliques, ladite matrice contenant au moins une molécule sonde portant au moins une fonction réactive pouvant réagir avec une fonction aldéhyde, matériau pour sa mise en oevre, son procédé de préparation, et capteurs intérant de tels matériaux.