Document Type

Journal Article

Author ORCID Identifier

0000-0002-4089-3611

Department/Unit

School of Chinese Medicine

Title

Recent progress in nanomaterial-based assay for the detection of phytotoxins in foods

Language

English

Abstract

Phytotoxins refers to toxic chemicals derived from plants. They include both secondary metabolites that are dose-dependently toxic and allergens that can cause anaphylactic shock in sensitive individuals. Detecting phytotoxins in foods is increasingly important. Conventional methods for detecting phytotoxins lack sufficient sensitivity and operational convenience. Nanomaterial-based determination assays show great competence in fast and accurate sensing of trace substances. In the present review, representative phytotoxin categories of alkaloids, cyanides, and proteins are discussed. Application of notable nanomaterials, e.g. carbon nanotubes, graphene oxide, magnetic nanoparticles, metal-based nanotools, and quantum dots, in specific sensing strategies to fit the physiochemical properties of the target toxins are summarized. Nanomaterials mainly play four roles in phytotoxin detection: 1) analyte enricher; 2) sensor structure mediator; 3) target recognizer or reactant; 4) signaling agent. Great achievements have been made in the detection of trace plant-derived toxins in food matrices, yet there are still challenges awaiting further investigation.

Keywords

Nanomaterials, magnetic anoparticles, graphene oxide, carbon nanotubes, toxins, food safety

Publication Date

3-30-2019

Source Publication Title

Food Chemistry

Volume

277

Start Page

162

End Page

178

Publisher

Elsevier

Peer Reviewed

1

DOI

10.1016/j.foodchem.2018.10.075

Link to Publisher's Edition

https://www.sciencedirect.com/science/article/pii/S0308814618318508

ISSN (print)

03088146

Previous Versions

Oct 21 2018

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