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Digital Microfluidics for Automated Proteomic Processing
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Digital microfluidics: an emerging sample preparation platform for mass spectrometry.

Andrea E Kirby1, Aaron R Wheeler

  • 1Department of Chemistry, University of Toronto, 80 St George Street, Toronto, Ontario, M5S 3H6 Canada.

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|June 20, 2013
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Digital microfluidics (DMF) streamlines laborious mass spectrometry (MS) sample preparation. This review highlights DMF

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Area of Science:

  • Analytical Chemistry
  • Biotechnology
  • Laboratory Automation

Background:

  • Mass spectrometry (MS) is vital in lab science but requires extensive sample processing.
  • Digital microfluidics (DMF) offers automated microscale liquid handling for sample prep.
  • DMF manipulates discrete droplets as microreactors for efficient processing.

Purpose of the Study:

  • To review the integration of digital microfluidics (DMF) with mass spectrometry (MS).
  • To summarize advancements in DMF-based sample processing for MS analysis.
  • To explore both off-line and in-line MS analysis strategies with DMF.

Main Methods:

  • Review of existing literature on DMF and MS integration.
  • Analysis of DMF capabilities for droplet manipulation (merging, mixing, splitting).
  • Categorization of DMF-MS applications based on integration type (off-line vs. in-line).

Main Results:

  • DMF significantly reduces sample processing time and labor for MS.
  • Integrated DMF-MS systems show promise in proteomics, chemical synthesis, and diagnostics.
  • Both off-line and in-line MS coupling strategies have been successfully demonstrated.

Conclusions:

  • DMF is a powerful tool for automating and miniaturizing sample preparation for MS.
  • The integration of DMF and MS enhances analytical throughput and efficiency.
  • Future work should focus on further optimizing DMF-MS platforms for diverse applications.