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Microfluidic System for Automated Cell-based Assays.

Philip J Lee1, Navid Ghorashian, Terry A Gaige

  • 1CellASIC Corporation, San Leandro, CA, 94577.

JALA (Charlottesville, Va.)
|January 4, 2008
PubMed
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This study presents a novel microfluidic cell culture system compatible with standard 96-well plates. This innovation enhances drug screening by improving cell function and data quality while reducing costs.

Area of Science:

  • Biotechnology
  • Cell Biology
  • Drug Discovery

Background:

  • Microfluidic cell culture offers advantages for drug screening, including enhanced biological function and reduced costs.
  • Existing microfluidic systems often lack compatibility with standard laboratory formats.

Purpose of the Study:

  • To adapt microfluidic cell culture technology for seamless integration with the 96-well plate format.
  • To develop a user-friendly microfluidic system for long-term perfusion cell culture and direct analysis.

Main Methods:

  • A novel microfluidic plate design was developed, featuring 8 independent flow units without tubing or connectors.
  • A passive, gravity-driven pump enabled continuous perfusion culture at a flow rate of 50 μl/day.
  • Cytotoxicity of etoposide was assessed on HeLa cells using a lactate dehydrogenase (LDH) assay.

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Main Results:

  • The microfluidic system maintained long-term continuous perfusion culture with a 6-minute residence time.
  • Direct analysis of cell viability was performed on the outlet wells of the microfluidic plate.
  • The system demonstrated effective measurement of anti-cancer drug cytotoxicity.

Conclusions:

  • The adapted microfluidic cell culture design is compatible with standard 96-well plates, simplifying integration into existing workflows.
  • This approach enhances cell-based screening by improving biological function and data quality.
  • Integration with commercial automation offers significant potential for advancing drug screening applications.