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Gold Nanoparticle-Based Colorimetric Biosensing for Foodborne Pathogen Detection.

Sang-Hyun Park1, Youngsang You2

  • 1Department of Food Science and Technology, Kongju National University, Yesan 32439, Chungnam, Republic of Korea.

Foods (Basel, Switzerland)
|January 11, 2024
PubMed
Summary

Gold nanoparticles enhance colorimetric biosensors for detecting foodborne pathogens. These localized surface plasmon resonance (LSPR) biosensors offer rapid, visible detection for improved food safety and quality control.

Keywords:
food qualityfood safetylocalized surface plasmon resonance (LSPR)nanotechnologyvisible-signaling biosensor

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Area of Science:

  • Food Science
  • Nanotechnology
  • Analytical Chemistry

Background:

  • Consumers face increased foodborne pathogen risks from complex supply chains and climate change.
  • Nanomaterial-based assays are emerging as crucial tools for ensuring food safety and quality.
  • Visible-signal biosensors, particularly those using localized surface plasmon resonance (LSPR), are gaining prominence in food analysis.

Purpose of the Study:

  • To review strategies for using gold nanoparticles in colorimetric biosensors for food analysis.
  • To explain the principles of LSPR biosensors and their application in detecting foodborne pathogens.
  • To explore nanotechnology's role in developing rapid, onsite food safety detection methods.

Main Methods:

  • Review of literature on gold nanoparticle-based colorimetric biosensors.
  • Explanation of localized surface plasmon resonance (LSPR) theory and its application.
  • Discussion of factors influencing visible signal generation in LSPR biosensors.

Main Results:

  • Gold nanoparticles are effective in developing visible-signal colorimetric biosensors.
  • LSPR biosensors demonstrate potent capabilities for direct measurement of foodborne pathogen targets.
  • Emerging technologies facilitate simple, rapid immunoassays for onsite food industry applications.

Conclusions:

  • Field-friendly colorimetric biosensors, utilizing gold nanoparticles and LSPR, show significant promise for food monitoring.
  • Onsite, real-time detection of contaminants is essential for safeguarding public health.
  • Continued development in nanotechnology will enhance food safety and quality assurance systems.