Microfluidic methods for nucleic acid monitoring

C - Chemistry – Metallurgy – 12 – Q

Patent

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Details

C12Q 1/68 (2006.01) C12Q 1/70 (2006.01) G01N 33/50 (2006.01)

Patent

CA 2652626

A microfluidic device for monitoring specific nucleic acids contained in a clinical sample, wherein the device comprises at least one input well capable of receiving at least one clinical sample, at least one chamber capable of receiving a portion of at least one clinical sample, and at least one microfluidic channel capable of separating nucleic acid according to size and capable of receiving a portion of at least one clinical sample, is disclosed. Said at least one input well, chamber and microfluidic channel are all in fluid communication by at least two second microfluidic channels. Further, said microfluidic device comprises at least two valves capable of preventing fluid flow through at least one of said second microfluidic channels. In one embodiment, the nucleic acid is viral and the clinical sample originates from human blood, urine or tissue. Also provided for is a method to monitor a patient undergoing an immunomodulatory, immunosuppressive or lmmunoablative therapy, using the device.

L'invention concerne un dispositif microfluidique destiné à MONITORER des acides nucléiques spécifiques contenus dans un échantillon clinique. Ledit dispositif comprend au moins une cuvette d'entrée capable de recevoir au moins un échantillon clinique, au moins une chambre capable de recevoir une partie du au moins un échantillon clinique, et au moins un canal microfluidique capable de séparer les acides nucléiques en fonction de leur taille, et capable de recevoir une partie du au moins un échantillon clinique. Lesdits au moins une cuvette d'entrée, au moins une chambre et au moins un canal microfluidique sont tous mis en communication fluidique par au moins deux deuxièmes canaux microfluidiques. En outre, ledit dispositif microfluidique comprend au moins deux valves capable d'empêcher le fluide de s'écouler à travers au moins un desdits deuxièmes canaux microfluidiques. Dans un mode de réalisation, l'acide nucléique est viral, et l'échantillon clinique provient de sang, d'urine ou de tissu humains. L'invention concerne également un procédé de surveillance d'un patient soumis à un traitement immunomodulateur, immunosuppresseur ou immunoablateur, qui utilise le dispositif.

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