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Issue 16, 2014
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Diffusion-based microfluidic PCR for “one-pot” analysis of cells

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Abstract

Genetic analysis starting with cell samples often requires multi-step processing including cell lysis, DNA isolation/purification, and polymerase chain reaction (PCR) based assays. When conducted on a microfluidic platform, the compatibility among various steps often demands a complicated procedure and a complex device structure. Here we present a microfluidic device that permits a “one-pot” strategy for multi-step PCR analysis starting from cells. Taking advantage of the diffusivity difference, we replace the smaller molecules in the reaction chamber by diffusion while retaining DNA molecules inside. This simple scheme effectively removes reagents from the previous step to avoid interference and thus permits multi-step processing in the same reaction chamber. Our approach shows high efficiency for PCR and potential for a wide range of genetic analysis including assays based on single cells.

Graphical abstract: Diffusion-based microfluidic PCR for “one-pot” analysis of cells

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Publication details

The article was received on 28 Apr 2014, accepted on 28 May 2014 and first published on 28 May 2014


Article type: Communication
DOI: 10.1039/C4LC00498A
Citation: Lab Chip, 2014,14, 2905-2909
  • Open access: Creative Commons BY-NC license
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    Diffusion-based microfluidic PCR for “one-pot” analysis of cells

    S. Ma, D. N. Loufakis, Z. Cao, Y. Chang, L. E. K. Achenie and C. Lu, Lab Chip, 2014, 14, 2905
    DOI: 10.1039/C4LC00498A

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