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Warwick develops rapid sugar-based venom detection assay

Using glycopolymers with gold nanoparticles, the new test produces a color change that could streamline snakebite treatment worldwide.

Western Diamondback Rattlesnake, Crotalus atrox, Location: Germany, Ulm, Zoological Garden
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Overview

  • The assay leverages synthetic sugar chains that mimic cellular glycans to bind Western Diamondback Rattlesnake toxins and trigger a visible color change.
  • Attachment of glycopolymers to gold nanoparticles amplifies binding events and enables ultraviolet-visible detection without antibodies.
  • The platform is cheaper, faster and easier to store than conventional antibody-based diagnostics, addressing cost and logistical barriers.
  • Tests on Indian Cobra venom confirmed the assay’s specificity by showing no binding to synthetic glycans designed for C. atrox toxins.
  • Published in ACS Biomacromolecules, the proof-of-concept study is part of Warwick’s STEM Connect initiative to advance humanitarian diagnostics.