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High-throughput Detection Method for Influenza Virus
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Functionalized magnetic microparticle-based colorimetric platform for influenza A virus detection.

Chaohui Chen1, Zhong Zou, Lu Chen

  • 1Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China. Institute for Interdisciplinary Research & Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, Jianghan University, Wuhan 430056, People's Republic of China.

Nanotechnology
|September 23, 2016
PubMed
Summary

A new colorimetric method detects influenza A virus using enzymatic reactions and gold nanoparticles. This sensitive platform offers a novel approach for rapid virus and protein detection.

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Area of Science:

  • Biotechnology
  • Nanotechnology
  • Analytical Chemistry

Background:

  • Influenza A virus poses a significant global health threat, necessitating rapid and sensitive detection methods.
  • Current diagnostic tools often require complex procedures or specialized equipment, limiting their accessibility.

Purpose of the Study:

  • To develop a novel, sensitive, and colorimetric platform for the detection of influenza A virus.
  • To utilize enzymatic catalysis and gold nanoparticle growth for signal amplification and visual readout.

Main Methods:

  • Synthesis of aptamer-functionalized magnetic microparticles for virus capture.
  • ConA-GOx-AuNPs conjugation for specific binding to H3N2 virus via ConA-glycan interaction.
  • Enzymatic reaction triggered by glucose to produce hydrogen peroxide, controlling gold nanoparticle growth and color development.

Main Results:

  • The developed platform demonstrated high sensitivity, detecting the target virus as low as 11.16 μg ml(-1).
  • Colorimetric changes in gold nanoparticles allowed for the quantitative determination of H3N2 virus concentration.
  • The method proved effective for sensitive and colorimetric detection of viruses and proteins.

Conclusions:

  • The study presents a robust colorimetric platform for influenza A virus detection.
  • This approach leverages enzymatic amplification and gold nanoparticle chemistry for enhanced sensitivity.
  • The developed method shows promise for broader applications in detecting viruses and proteins.