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Related Concept Videos

Enzyme-Linked Immunosorbent Assay01:33

Enzyme-Linked Immunosorbent Assay

In 1971, Peter Perlman and Eva Engvall developed an Enzyme-linked immunosorbent assay (ELISA or EIA). ELISA differs from western blot in that the assays are conducted in microtiter plates or in vivo rather than on an absorbent membrane.
There are many different types of ELISAs, but they all involve an antibody molecule whose constant region binds an enzyme, leaving the variable region free to bind its specific antigen.  Enzyme-substrate reaction allows the antigen to be visualized or quantified.

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Computer Numerical Control Micromilling of a Microfluidic Acrylic Device with a Staggered Restriction for Magnetic Nanoparticle-Based Immunoassays
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Colloidal nanomaterial-based immunoassay.

Bruno Teste1, Stephanie Descroix

  • 1Institut Curie/CNRS/UPMC UMR168, 26 Rue d'Ulm, 75005 Paris, France.

Nanomedicine (London, England)
|June 28, 2012
PubMed
Summary
This summary is machine-generated.

Nanomaterials accelerate immunoassay diagnosis by serving as nanoplatforms for colloidal immunoassays. This approach overcomes limitations of traditional methods, enabling faster and more efficient clinical diagnostics.

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Area of Science:

  • Nanomedicine
  • Biotechnology
  • Analytical Chemistry

Background:

  • Nanomaterials offer unique properties for advanced diagnostic tools.
  • Conventional immunoassays face challenges like mass transfer limitations and long assay times.
  • Colloidal nanomaterials provide a promising alternative for rapid immunoassay development.

Purpose of the Study:

  • To review the application of nanomaterials as nanoplatforms in colloidal immunoassays.
  • To discuss the advantages of nanomaterials in speeding up immunoassay kinetics.
  • To explore recent advances and future directions in nanomaterial-based immunoassays for clinical diagnosis.

Main Methods:

  • Review of literature on nanomaterial applications in various immunoassay formats.
  • Discussion of popular colloidal nanomaterials and their impact on immune reactions.
  • Analysis of recent developments in indirect, optical-based agglutination, resonance energy transfer, and magnetic relaxation immunoassays.

Main Results:

  • Colloidal immunosupports utilizing nanomaterials significantly shorten assay times compared to heterogeneous assays.
  • Nanomaterials enhance reaction kinetics by allowing target capture throughout the entire volume.
  • Diverse nanomaterial applications have been reported across various immunoassay formats.

Conclusions:

  • Nanomaterials are highly effective nanoplatforms for developing advanced colloidal immunoassays.
  • These nanomaterials offer significant advantages in terms of speed and efficiency for clinical diagnosis.
  • Future research holds promise for nanomaterial-based homogeneous immunoassays in clinical settings.