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Related Experiment Videos

A decade of development in immunoassay methodology.

J P Gosling1

  • 1Department of Biochemistry, University College, Galway, Ireland.

Clinical Chemistry
|August 1, 1990
PubMed
Summary

Modern immunoassays offer precise, reliable clinical diagnostics, moving beyond radioisotopes to automated, nonisotopic systems. These advancements improve detection limits and analytical efficiency in laboratories worldwide.

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Area of Science:

  • Clinical Laboratory Science
  • Biotechnology
  • Analytical Chemistry

Background:

  • Immunoassays are essential analytical methods in clinical laboratories due to their effectiveness and feasibility.
  • Significant advancements in immunoassay reagents and systems have occurred over the last decade.

Purpose of the Study:

  • To review the evolution and current state of immunoassay technologies in clinical diagnostics.
  • To discuss trends, including the shift towards nonisotopic, automated, and solid-phase assay systems.
  • To highlight the importance of monoclonal antibodies, advanced labels, and validation in immunoassay development.

Main Methods:

  • Review of recent developments in immunoassay reagents and systems.
  • Analysis of trends moving from liquid-phase radioisotopic assays to homogeneous and solid-phase assays.
  • Discussion of nonisotopic labels, automated/semi-automated systems, and immunosensors.

Main Results:

  • A major trend is the move from radioisotopic labels to nonisotopic methods.
  • Development of fast, homogeneous, and solid-phase assays for widespread use.
  • Increased precision, reliability, and detection limits (pico- to attomoles) in automated laboratory assays.

Conclusions:

  • Immunoassays have become indispensable in clinical laboratories, driven by technological innovation.
  • The field is characterized by sophisticated monoclonal antibodies, advanced labels, and solid-phase technologies.
  • Future directions include novel assay formulations, immunosensors, and a continued focus on validation.

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