Microfluidics and Nanofluidics

, Volume 10, Issue 3, pp 697–702

On-chip PCR amplification of genomic and viral templates in unprocessed whole blood

  • Dammika P. Manage
  • Yuen C. Morrissey
  • Alexander J. Stickel
  • Jana Lauzon
  • Alexey Atrazhev
  • Jason P. Acker
  • Linda M. Pilarski
Short Communication

DOI: 10.1007/s10404-010-0702-4

Cite this article as:
Manage, D.P., Morrissey, Y.C., Stickel, A.J. et al. Microfluid Nanofluid (2011) 10: 697. doi:10.1007/s10404-010-0702-4

Abstract

Performing medical diagnosis in microfluidic devices could scale down laboratory functions and reduce the cost for accessible healthcare. The ultimate goal of such devices is to receive a sample of blood, perform genetic amplification (polymerase chain reaction—PCR) and subsequently analyse the amplified products. DNA amplification is generally performed with DNA purified from blood, thus requiring on-chip implementation of DNA extraction steps with consequent increases in the complexity and cost of chip fabrication. Here, we demonstrate the use of unprocessed whole blood as a source of template for genomic or viral targets (human platelet antigen 1 (HPA1), fibroblast growth factor receptor 2 (FGFR2) and BK virus (BKV)) amplified by PCR on a three-layer microfluidic chip that uses a flexible membrane for pumping and valving. The method depends upon the use of a modified DNA polymerase (Phusion™). The volume of the whole blood used in microchip PCR chamber is 30 nl containing less than 1 ng of genomic DNA. For BKV on-chip whole blood PCR, about 3000 copies of BKV DNA were present in the chamber. The DNA detection method, laser-induced fluorescence, used in this article so far is not quantitative but rather qualitative providing a yes/no answer. The ability to perform clinical testing using whole blood, thereby eliminating the need for DNA extraction or sample preparation prior to PCR, will facilitate the development of microfluidic devices for inexpensive and faster clinical diagnostics.

Keywords

On-chip PCR Microfluidics Whole blood PCR Phusion Taq 

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Dammika P. Manage
    • 1
  • Yuen C. Morrissey
    • 1
  • Alexander J. Stickel
    • 1
  • Jana Lauzon
    • 1
  • Alexey Atrazhev
    • 1
  • Jason P. Acker
    • 2
    • 3
  • Linda M. Pilarski
    • 1
    • 2
  1. 1.Department of OncologyUniversity of Alberta and Cross Cancer InstituteEdmontonCanada
  2. 2.Department of Laboratory Medicine and PathologyUniversity of AlbertaEdmontonCanada
  3. 3.Research and Development, Canadian Blood ServicesEdmontonCanada

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