4.8 Article

Droplet-Based Microfluidic Systems for High-Throughput Single DNA Molecule Isothermal Amplification and Analysis

Journal

ANALYTICAL CHEMISTRY
Volume 81, Issue 12, Pages 4813-4821

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ac900403z

Keywords

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Funding

  1. Ministere de l'Enseignement Superieur et de la Recherche
  2. Centre National de la Recherche Scientifique (CNRS)
  3. Agence National de la Recherche (ANIZ) [ANR-05-BLAN-0397]
  4. Fondation d'Entreprise EADS
  5. Conseil Scientifique de l'Universite Louis Pasteur
  6. Medical Research Council (U.K.)
  7. Ministry of Defence (U.K.)
  8. EC FP6 Marie Curie Research Training Network
  9. ProSA
  10. Human Frontier Science Program (HFSP)
  11. EMBO [ALTF 915-2006]
  12. Agence Nationale de la Recherche (ANR) [ANR-05-BLAN-0397] Funding Source: Agence Nationale de la Recherche (ANR)

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We have developed a method for high-throughput isothermal amplification of single DNA molecules in a droplet-based microfluidic system. DNA amplification in droplets was analyzed using an intercalating fluorochrome, allowing fast and accurate digital quantification of the template DNA based on the Poisson distribution of DNA molecules in droplets. The clonal amplified DNA in each 2 pL droplet was further analyzed by measuring the enzymatic activity of the encoded proteins after fusion with a 15 pL droplet containing an in vitro translation system.

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