A review of the use of carbon nanotubes and graphene-based sensors for the detection of aflatoxin m1 compounds in milk

Jingrong Gao, Shan He*, Anindya Nag, Jonathan Woon Chung Wong

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

This paper presents a comprehensive review of the detection of aflatoxin compounds using carbon allotrope-based sensors. Although aflatoxin M1 and its derivative aflatoxin B1 compounds have been primarily found in milk and other food products, their presence above a thresh-old concentration causes disastrous health-related anomalies in human beings, such as growth im-pairment, underweight and even carcinogenic and immunosuppressive effects. Among the many sensors developed to detect the presence of these compounds, the employment of certain carbon allotropes, such as carbon nanotubes (CNTs) and graphene, has been highly preferred due to their enhanced electromechanical properties. These conductive nanomaterials have shown excellent quantitative performance in terms of sensitivity and selectivity for the chosen aflatoxin compounds. This paper elucidates some of the significant examples of the CNTs and graphene-based sensors measuring Aflatoxin M1 (ATM1) and Aflatoxin B1 (AFB1) compounds at low concentrations. The fabrication technique and performance of each of the sensors are shown here, as well as some of the challenges existing with the current sensors.

Original languageEnglish
Article number3602
JournalSensors
Volume21
Issue number11
DOIs
Publication statusPublished - Jun 2021

Scopus Subject Areas

  • Analytical Chemistry
  • Information Systems
  • Atomic and Molecular Physics, and Optics
  • Biochemistry
  • Instrumentation
  • Electrical and Electronic Engineering

User-Defined Keywords

  • Aflatoxin B1
  • Aflatoxin M1
  • Carbon nanotubes
  • Graphene
  • Immunoassay

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