High Speed Polymerase Chain Reaction in Constant Flow
Citations Over Time
Abstract
A new simple reactor of the tubing type was developed for polymerase chain reaction (PCR). A thin Teflon capillary tube was used as a tubing reactor in which the reaction mixture of PCR was driven by a pump at a constant flow rate. The sample was treated with three successive thermal stages for denaturation, annealing, and elongation of DNA and primers as a function of the position in the tube. The amplification yield was about a half of that obtained by a commercial thermocycler. Moreover, the total reaction time from 12 to 18 min, which was one-tenth of the time generally required by conventional thermocyclers using metal blocks, assured substaintial amplification of a DNA fragment. In addition, this reactor could be also used for rapid cycle-sequences. This new device will be easily incorporated into automated and rapid DNA analysis systems for DNA sequencing.
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