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Channels with cross-sectional thermal gradients

  • US 9,222,115 B2
  • Filed: 12/21/2012
  • Issued: 12/29/2015
  • Est. Priority Date: 12/30/2011
  • Status: Expired due to Fees
First Claim
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1. A device comprising:

  • a) a microchannel comprising a surface configured for transmission of a carrier medium comprising droplets;

    b) a first thermal layer positioned along said microchannel configured to heat a portion of said microchannel surface to a nucleic acid denaturation temperature; and

    c) a second thermal layer positioned along said microchannel configured to heat or cool a portion of said microchannel surface to a nucleic acid annealing temperature;

    wherein said first and said second thermal layers are positioned along opposing surface walls of said microchannel to create a thermal gradient across a cross-section of said microchannel; and

    wherein said thermal gradient comprises a nucleic acid denaturation zone, a nucleic acid annealing zone, and a nucleic acid polymerization zone.

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