Reaction system for performing in the amplification of...

B - Operations – Transporting – 01 – L

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B01L 7/00 (2006.01) B01L 3/00 (2006.01) C12Q 1/68 (2006.01)

Patent

CA 2384528

A method of carrying out an amplification reaction, said method comprising supplying to a well in a disposable unit (a) a sample which contains or is suspected of containing a target nucleic acid sequence (b) primers, nucleotides and enzymes required to effect said amplification reaction and (c) a buffer system, and subjecting the unit to thermal cycling conditions such that any target nucleic acid present within the sample is amplified; wherein the disposable unit comprises a thermally conducting layer and a facing layer having one or more reagent wells of up to 1000 microns in depth defined therebetween; and the reaction mixture comprises at least one of the following: A) a buffer system wherein the pH is above 8.3; B) a detergent; and/or C) a blocking agent. Apparatus for effecting the method as well as disposable units for use in the method are described. The method is particularly suitable for rapid PCR reactions.

L'invention concerne un procédé pour mettre en oeuvre une réaction d'amplification; ce procédé consiste à amener vers un puits dans une unité jetable (a) un échantillon qui contient ou dont on croit qu'il contient une séquence d'acide nucléique cible, (b) des amorces, nucléotides et enzymes nécessaires pour mettre en oeuvre cette réaction d'amplification et (c) un système tampon, puis à soumettre l'unité aux conditions thermiques cycliques qui permettent d'amplifier n'importe quel acide nucléique cible à l'intérieur de l'échantillon; l'unité jetable comprend une couche conductrice de chaleur et une couche avant, avec un ou plusieurs puits de réactifs d'une profondeur allant jusqu'à 1000 micromètres définis entre ces couches. Le mélange de réaction comprend au moins ce qui suit: A) un système tampon dans lequel le pH est supérieur à 8,3; B) un détergent; et/ou C) un agent bloquant. L'invention comporte une description de l'appareil pour mettre en oeuvre ce procédé ainsi que des unités jetables utilisées selon ce procédé. Ce procédé est particulièrement adapté aux réactions PCR rapides.

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