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Related Experiment Video

Updated: Mar 18, 2026

Determination of High-affinity Antibody-antigen Binding Kinetics Using Four Biosensor Platforms
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Non-antibody protein-based biosensors.

Paul Ko Ferrigno1

  • 1Avacta Life Sciences Ltd., Unit 651A, Street 5, Thorp Arch Estate, Wetherby LS23 7FZ, U.K. paul.koferrigno@avacta.com.

Essays in Biochemistry
|July 2, 2016
PubMed
Summary

Biosensors can give false results due to non-specific interactions. This review explores non-antibody proteins as specific recognition elements for improved biosensor performance in electrical and micro-mechanical platforms.

Area of Science:

  • Biomedical Engineering
  • Analytical Chemistry
  • Materials Science

Background:

  • Biosensors using physical or chemical measurements are susceptible to non-specific interactions, leading to inaccurate results.
  • Antibodies are commonly used as recognition elements due to their specificity, but often fail when immobilized on inorganic surfaces.
  • There is a need for alternative biological recognition elements that perform reliably on biosensor platforms.

Purpose of the Study:

  • To review non-antibody-binding proteins as alternative recognition elements for biosensors.
  • To highlight proteins successfully employed in electrical and micro-mechanical biosensor platforms.
  • To address the limitations of antibody-based recognition in biosensor development.

Main Methods:

  • Literature review of scientific publications.
Keywords:
AffimersAnticalinsDarpinsadhironsaptamersnanobodies

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  • Analysis of biosensor platforms utilizing non-antibody recognition elements.
  • Categorization of proteins based on their binding properties and application in biosensors.

    • Main Results:

    • Several non-antibody-binding proteins have been successfully implemented in biosensor designs.
    • These proteins offer specific molecular recognition, overcoming limitations of non-specific binding.
    • Successful applications are demonstrated in both electrical and micro-mechanical biosensor systems.

    Conclusions:

    • Non-antibody proteins represent a viable alternative to antibodies for biosensor recognition elements.
    • These proteins enhance biosensor specificity and reliability, particularly on inorganic surfaces.
    • Further research into non-antibody proteins can advance biosensor technology for various applications.