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Related Experiment Videos

Label-free assays on the BIND system.

Brian T Cunningham1, Peter Li, Stephen Schulz

  • 1SRU Biosystems, 14A Gill Street, Woburn, Massachusetts 01801, USA. bcunningham@srubiosystems.com

Journal of Biomolecular Screening
|September 29, 2004
PubMed
Summary
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This study introduces a novel biosensor technology for label-free biochemical screening. The innovative approach enhances assay simplicity, accuracy, and cost-effectiveness for high-throughput applications.

Area of Science:

  • Biotechnology
  • Biosensor Technology
  • Biochemical Assays

Background:

  • Traditional biochemical screening often relies on labels (dyes, radioactive markers), increasing complexity and cost.
  • Developing label-free assay methods is crucial for simplifying, reducing expenses, and improving accuracy in biochemical interaction screening.

Purpose of the Study:

  • To introduce and validate a novel label-free biosensor technology for high-throughput biochemical screening.
  • To demonstrate the versatility and performance of the biosensor across various assay applications.

Main Methods:

  • Development of a biosensor utilizing a narrow band guided-mode resonance reflectance filter on continuous plastic film.
  • Integration of the biosensor into standard microplates and microarray slides for label-free assay performance.

Related Experiment Videos

  • Application of conventional biochemical immobilization surface chemistries for diverse assay development.

    • Main Results:

    • The biosensor enables label-free assays with high throughput, high sensitivity, and low cost per assay.
    • Demonstrated a 4-order linear dynamic range and excellent uniformity within plates (2.5% CV).
    • Successfully applied the technology to small molecule screening, cell proliferation/cytotoxicity, enzyme activity, protein-protein interactions, and cell membrane receptor expression.

    Conclusions:

    • The developed biosensor technology offers a significant advancement in label-free biochemical screening.
    • This technology provides a cost-effective, sensitive, and high-throughput solution for a wide range of biological and chemical assays.
    • The label-free nature simplifies assay procedures and enhances accuracy, paving the way for broader adoption in research and diagnostics.