Methods for separation and characterization of...

G - Physics – 01 – N

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G01N 33/68 (2006.01) C12M 1/34 (2006.01) C12Q 1/04 (2006.01)

Patent

CA 2741008

The present invention is directed to a method for separating, characterizing and/or identifying microorganisms in a test sample. The method of the invention comprises an optional lysis step for lysing non-microorganism cells that may be present in a test sample, followed by a subsequent separation step. The method may be useful for the separation, characterization and/or identification of microorganisms from complex samples such as blood-containing culture media. The invention further provides for the use of one or more identifier agents and interrogating the microorganism sample and/or said one or more identifier agents to produce measurements which characterizing and/or identifying the microorganism based on the produced measurements and/or the presence or absence of the identifier agent or a metabolized form of the identifier agent in the microorganism sample.

La présente invention concerne un procédé pour séparer, caractériser et/ou identifier des micro-organismes dans un échantillon dessai. Le procédé de linvention comprend une étape de lyse facultative pour lyser les cellules non-micro-organismes qui peuvent être présentes dans un échantillon dessai, suivie par une étape de séparation consécutive. Le procédé peut être utile pour la séparation, la caractérisation et/ou lidentification de micro-organismes à partir déchantillons complexes tels que des milieux de culture contenant du sang. Linvention concerne en outre lutilisation dun ou plusieurs agents identificateurs et lanalyse de léchantillon de micro-organismes et/ou dudit ou desdits agents identificateurs pour produire des mesures qui caractérisent et/ou identifient le micro-organisme sur la base des mesures générées et/ou de la présence ou labsence de lagent identificateur ou une forme métabolisée de lagent identificateur dans léchantillon de micro-organismes.

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