Methods and apparatus for pathogen detection and analysis

C - Chemistry – Metallurgy – 12 – M

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C12M 1/34 (2006.01) C07H 21/02 (2006.01) C12Q 1/68 (2006.01) C40B 30/04 (2006.01) C40B 60/00 (2006.01) C12P 19/34 (2006.01)

Patent

CA 2512071

Methods and apparatus for implementing microfluidic analysis devices are provided. A monolithic elastomer membrane associated with an integrated pneumatic manifold allows the placement and actuation of dense arrays of a variety of fluid control structures, such as structures for isolating, routing, merging, splitting, and storing volumes of fluid. The fluid control structures can be used to implement a pathogen detection and analysis system including integrated immunoaffinity capture and analysis, such as polymerase chain reaction (PCR) and capillary electrophoresis (CE) analysis. An analyte solution can be input into the device and pumped through a series of immunoaffinity capture matrices in microfabricated chambers having antibodies targeted to the various classes of microbiological organisms such as bacteria, viruses and bacterial spores. The immunoaffinity chambers can capture, purify, and concentrate the target for further analysis steps.

La présente invention concerne des procédés et un appareil permettant la mise en oeuvre de dispositifs d'analyses microfluides. Une membrane élastomère monolithique associée à une rampe de distribution pneumatique intégrée permet la mise en place et la mise en action de matrices denses de diverses structures de gestion des fluides, et notamment des structures permettant d'isoler, d'acheminer, de fusionner, de séparer et de stocker des volumes de fluide. Ces structures de gestion des fluides convient à la mise en oeuvre d'un système de détection et d'analyse d'agents pathogènes avec capture et analyse intégrées de l'immunoaffinité, telle qu'analyse par amplification par la polymérase (PCR) et analyse par électrophorèse capillaire (CE). Une solution d'analysat peut être introduite dans le dispositif et pompée via une série de matrices de capture par immunoaffinité dans des chambres micro-usinées où des anticorps sont ciblés vers les diverses classes d'organismes microbiologiques tels que les bactéries, les virus et les spores bactériennes. Les chambres d'immunoaffinité peuvent capturer, purifier, et concentrer la cible en vue d'opérations ultérieures d'analyse.

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