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Nanomaterials in Smart Packaging Applications: A Review.

Junaid Siddiqui1, Mahtab Taheri1, Arif Ul Alam1

  • 1Electrical and Computer Engineering (ECE) Department, McMaster University, 1280 Main Street W, Hamilton, Ontario, L8S 4K1, Canada.

Small (Weinheim an Der Bergstrasse, Germany)
|September 13, 2021
PubMed
Summary

Smart food packaging with nanomaterial-based pH sensors and time-temperature indicators (TTIs) can help reduce global food wastage by enabling real-time quality monitoring. This review highlights advancements and future needs for these critical food safety sensors.

Keywords:
foodnanomaterialspHsensorssmart packaging applicationstime-temperature indicator

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Area of Science:

  • Materials Science
  • Food Science
  • Nanotechnology

Background:

  • Food wastage is a significant global issue driven by supply chain inefficiencies and market instability.
  • Monitoring food quality in real-time is essential to meet consumer standards and reduce spoilage.
  • Smart food packaging integrating sensors offers a solution for enhanced food quality and safety assurance.

Purpose of the Study:

  • To review recent advancements in pH sensors and time-temperature indicators (TTIs) for smart food packaging.
  • To discuss the materials, fabrication methods, and future requirements for these sensors.
  • To explore the role of nanomaterials in developing next-generation food quality monitoring systems.

Main Methods:

  • Review of current literature on pH sensors and TTIs in food packaging.
  • Analysis of various materials (polymers, metals, metal-oxides, carbon-based) used in sensor fabrication.
  • Examination of fabrication techniques including thin/thick film deposition, solution chemistry, and electrodeposition.

Main Results:

  • pH sensors and TTIs are critical for indicating food quality and safety.
  • Nanomaterials offer versatile options for sensor development, utilizing diverse materials and fabrication methods.
  • Progress in sensor technology enables real-time food quality monitoring within packaging.

Conclusions:

  • Nanomaterial-based pH sensors and TTIs are crucial for smart food packaging applications.
  • Continued research into novel materials and fabrication processes will enhance sensor performance and reliability.
  • These smart sensors hold significant potential to mitigate food wastage and improve food safety.