Themed collection Detection of contaminants in food

The advancement of nanotechnology has provided opportunities for the development of new sensing and food packaging solutions, addressing long-standing challenges to extend shelf-life, reduce waste, assess safety and improve the quality of food.

Biosensors with high sensitivity, selectivity and a low limit of detection, reaching nano/picomolar concentrations of biomolecules, are important to the medical sciences and healthcare industry for evaluating physiological and metabolic parameters.

Foodborne pathogens are the main factors behind foodborne diseases and food poisoning and thus pose a great threat to food safety.

Raman spectroscopy is a powerful technique for molecular analysis of food samples.

Melamine is an emerging contaminant in milk, infant formula and pet food.

Recent advances in the development of nanomaterials-based electrochemical sensors for environmental monitoring and food safety applications are assessed.

We combined Spin Noise Tuning Optimum (SNTO) and electric field component-optimized shaped tube to boost sensitivity for NMR-based metabolomics.

An enzyme immobilized glutathione (GSH)-capped CdTe quantum dot (QD)-based fluorescence assay has been developed for monitoring organophosphate pesticides.

In this work, a novel and very interesting analytical methodology based on coupling of digital image processing and three-way calibration has been developed for determination of nitrite in food samples.

Contamination of milk by mycotoxins is a serious problem worldwide.

Robust and efficient solid-phase extraction adsorbents based on magnetic core–shell covalent organic frameworks gave excellent analytical performance for determination of sulfonamide residues in food samples.

Sensitive and rapid detection of aflatoxin B1 (AFB1) without using antibody or biomolecular modifications in water is achieved using a novel water-stable luminescent metal–organic framework (LMOF) termed Zr-CAU-24.

The present study aimed to develop an aptamer-based FRET detection strategy for the specific and sensitive detection of AFB1 in contaminated food grains.

In the present work, a new amantadine imprinted quartz crystal microbalance sensor sensitized by Au nanoparticles and reduced graphene oxide material was fabricated by electrodeposition of o-aminothiophenol by cyclic voltammetry scanning.

A novel and effective colorimetric aptasensor based on enhanced peroxidase-mimicking catalytic ability of AuNPs was proposed for streptomycin detection.

A novel impedimetric aptasensor based on AuNPs–carboxylic porous carbon for the ultrasensitive detection of OTA.

Immunochromatography test strips have been widely used to detect foodborne pathogens due to their high sensitivity, stability and specificity, and the selection of the label is an important factor.

In this study, we designed a novel and ultrasensitive aptamer sensor for the quantitative detection of chlorpyrifos.

The aim of present study is to investigate the combination of Fourier transform infrared spectroscopy with pattern recognition to recognize the standard saffron from those which have been adulterated with various types of food colorants.

A new immunochromatographic assay was developed for the simultaneous screening of five antibiotics that can coexist in milk, namely lincomycin, gentamicin, kanamycin, streptomycin, and neomycin, using five corresponding monoclonal antibodies.

In this work, a nonenzymatic electrochemical sensor based on nanoporous magnesium oxide (MgO) was developed for the rapid screening of hydrogen peroxide (H₂O₂) in milk.

The size and uniformity of AuNPs were optimized to maximally amplify both visual inspection signals and quantitative data of LFA.

The principal objective of this study was to develop a sensitive and selective electrochemical sensor for phoxim detection based on a reduced graphene oxide–gold nanocomposite (RGO–Au) modified grassy carbon electrode (GCE).

A simple, sensitive, rapid fluorescence sensor has been developed to detect cyanide ions on the branched polyethylenimine-capped carbon quantum dots.