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An arrayable flow-through microcentrifuge for high-throughput instrumentation

A Marziali1, T D Willis, R W Davis

  • 1Stanford DNA Sequencing and Technology Center, 855 California Avenue, Palo Alto, CA 94304, USA. andre@physics.ubc.ca

Proceedings of the National Academy of Sciences of the United States of America
|January 6, 1999
PubMed
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A novel flow-through centrifuge enables high-throughput sample processing for applications like DNA sequencing. This compact system uses multiple rotors for parallel processing, enhancing automation in biological sample preparation.

Area of Science:

  • Biotechnology
  • Biomedical Engineering
  • Molecular Biology

Background:

  • Conventional centrifugation is a bottleneck in high-throughput biological sample processing.
  • Existing methods lack efficiency for large-scale, automated sample handling.

Purpose of the Study:

  • To develop and evaluate a compact, flow-through centrifugation system for high-throughput sample processing.
  • To demonstrate the system's utility in DNA sequencing protocols and other small-sample applications.

Main Methods:

  • Design of a novel centrifugation system with multiple high-speed rotors arrayed in a 96-well microtiter plate format.
  • Development of techniques for sample recovery (supernatant and pellet), mixing, and rotor cleaning.
  • Application of the system to cell separation, resuspension, and DNA purification/concentration.

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Main Results:

  • The flow-through centrifuge system facilitates highly parallel automated instrumentation.
  • Effective cell separation and resuspension were achieved.
  • Successful DNA purification and concentration were demonstrated, showing versatility beyond initial design.

Conclusions:

  • The developed flow-through centrifuge is a versatile and efficient tool for high-throughput sample preparation.
  • This technology offers a viable alternative to conventional centrifugation for numerous small-sample applications.
  • The system's design supports integration with automated laboratory workflows, improving overall process efficiency.