Detection of allergen-associated materials

G - Physics – 01 – N

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G01N 27/416 (2006.01) G01N 27/30 (2006.01) G01N 27/403 (2006.01) G01N 27/48 (2006.01) G01N 27/49 (2006.01) G01N 33/543 (2006.01) G01N 33/569 (2006.01)

Patent

CA 2428170

Measurement of the redox properties of household dust is used to detect the presence of allergen-associated materials. Measurement may be electrochemical, preferably amperometric. A disposable electrode assembly may be made by screen printing with conductive (e.g. carbon and Ag/AgCl) inks. An absorbent pad overlying the electrodes can be used to wipe a surface to collect a sample. It may contain electrolyte and buffer components, so that adding water carries sample in an electrolyte/buffer solution to the electrodes.

On utilise des mesures de propriétés oxydo-réductrices de poussière domestique pour détecter la présence de matières associées à des allergènes. Les mesures peuvent être électrochimiques, de préférence ampérométriques. Un ensemble d'électrodes jetable peut être constitué par sérigraphie avec des encres conductrices (par exemple carbone et Ag/AgCl). On peut utiliser un tampon absorbant sus-jacent aux électrodes pour essuyer une surface en vue de récolter un échantillon. L'échantillon peut contenir des composants électrolytiques et tampons, de sorte qu'en ajoutant de l'eau l'échantillon se transforme en solution électrolytique/tampon aux électrodes.

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