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Imaging systems in assay screening.

Ramm1

  • 1Imaging Research Inc., Brock University, St Catharines, Ontario, Canada L2S 3A1.

Drug Discovery Today
|August 26, 1999
PubMed
Summary

Image-based screening offers a novel approach for high-throughput screening (HTS) by enabling rapid quantification of numerous wells. This technology, exemplified by the LEADseeker instrument, shows promise for improving efficiency and reducing costs in drug discovery.

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Area of Science:

  • Biotechnology
  • Assay Development
  • Drug Discovery

Background:

  • High-throughput screening (HTS) laboratories face constant pressure to increase throughput, reduce costs, and conserve compounds.
  • Traditional detection instruments like scintillation counters and luminometers are undergoing incremental improvements.
  • Image-based detection presents a radical alternative for HTS, offering potential for miniaturization and rapid assay quantification.

Purpose of the Study:

  • To review the technology of a commercial image-based screening instrument, the LEADseeker.
  • To evaluate the performance of image-based screening across various assay types.

Main Methods:

  • Description of the LEADseeker instrument's technology.
  • Performance evaluation using scintillation, luminescence, fluorescence, and absorbance signals.

Main Results:

  • Image-based screening allows for the quantification of a large number of wells in a single procedure, supporting miniaturization.
  • The technology demonstrates potential for rapid detection of faint luminescence or scintillation signals.
  • The LEADseeker instrument's performance was assessed across multiple detection modalities.

Conclusions:

  • Image-based screening is an emerging technology with the potential to significantly enhance HTS efficiency.
  • Further validation is required for broad acceptance of image-based screening methods.
  • The LEADseeker instrument represents a commercial implementation of this promising HTS technology.

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