Biomimetic sensor that simulates human response to airborne...

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Details

G01N 21/77 (2006.01) G01N 21/59 (2006.01) G01N 31/22 (2006.01)

Patent

CA 2086436

The present invention relates to a biomimetic sensor for detecting the presence of airborne toxins, such as carbon monoxide, mercury, ethylene oxide, volatile organic materials, and hydrogen sulfide. The biomimetic sensor, which has a functional life of at least one year, comprises a porous, semi-transparent substrate into which is impregnated a self-regenerating chemical sensor reagent. The response of the biomimetic sensor mimics the human response to such toxins, with respect to sensitivity and affinity. The extended functional lifetime of the biomimetic sensor and the mimicking of the human response to the toxins are achieved by the use of a molecular encapsulant that encapsulates at least one component of the chemical sensor reagent.

Détecteur biomimétique destiné à détecter la présence de toxines en suspension dans l'air, telles que du monoxyde de carbone, du mercure, de l'oxyde d'éthylène, des matières organiques volatiles et des sulfures d'hydrogène. Le détecteur biomimétique, d'une durée de vie fonctionnelle d'au moins un an, comprend un substrat poreux semi-transparent imprégné d'un réactif de détection chimique auto-régénérant. La réponse du détecteur biomimétique mime la réponse humaine auxdites toxines, du point de vue de la sensibilité et de l'affinité. La durée de vie fonctionnelle prolongée du détecteur biomimétique et l'imitation de la réponse humaine face aux toxines sont obtenues à l'aide d'un agent d'encapsulation moléculaire encapsulant au moins un constituant du réactif de détection chimique.

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