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Colorimetric Sensing Technologies for Food Safety and Environment Monitoring

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Biosensors".

Deadline for manuscript submissions: 30 November 2025 | Viewed by 777

Special Issue Editors


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Guest Editor
Centro de Investigación Mariña, Departamento de Química Analítica e Alimentaria, Grupo QA2, Edificio CC Experimentais, Universidade de Vigo, Campus de Vigo, As Lagoas, Marcosende, 36310 Vigo, Spain
Interests: green analytical chemistry; environmental and food analysis; microfluidics; miniaturization; optical sensors and nanosensors

E-Mail Website
Guest Editor
Centro de Investigación Mariña, Departamento de Química Analítica e Alimentaria, Grupo QA2, Edificio CC Experimentais, Universidade de Vigo, Campus de Vigo, As Lagoas, Marcosende, 36310 Vigo, Spain
Interests: analytical nanoscience and nanotechnology; optical sensors; microfluidics; paper-based analytical devices and point-of-care testing for trace element analysis and speciation in environmental and food samples
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Special Issue Information

Dear Colleagues,

The development of advanced sensing approaches for food control and environmental monitoring is a challenging and increasingly important research domain. In recent years, significant progress has been made toward the development of chemosensors and nanosensors for both food and environmental analysis involving a range of transduction approaches. Colorimetric detection is particularly convenient and valuable due to its simplicity, cost-effectiveness and potential portability. The development of miniaturized detectors and, especially, the impressive emergence of ubiquitous everyday IT and communication devices, such as smartphones and tablets, as platforms for non-conventional optical sensing has prompted the development of colorimetric assays that provide reliable analytical information.

This Special Issue highlights advancements in colorimetric sensing for food and environmental analysis. The topics covered in the Special Issue include but are not limited to the synthesis, design, and application of molecular chromogens and plasmonic nanoparticles for food safety control and/or environmental monitoring. Special attention will be paid to multiplexed sensors, colorimetric sensor arrays, and colorimetric sensing films for smart packaging. Contributions involving smartphone cameras and smartphone-based spectrometers combined with colorimetric assays performed in paper-based analytical devices and lab-on-a-chip systems are particularly appreciated. Original research articles and reviews that significantly contribute to the field are welcome in this Special Issue.

Prof. Dr. Francisco Javier Pena-Pereira
Prof. Dr. José Carlos Bendicho Hernández
Guest Editors

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

 

Keywords

  • chemosensors
  • colorimetric sensor arrays
  • colorimetry
  • microfluidics
  • multiplexed detection
  • nanosensors
  • paper-based analytical devices
  • smart packaging
  • smartphone-based detection
  • smartphone-based spectrometry

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Published Papers (1 paper)

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Research

12 pages, 1226 KB  
Article
Development of a 96-Well Plate Dithiothreitol Method for the Colorimetric Determination of Nickel Ions in Water Samples
by George N. Nikas, Maria Tarara and George Z. Tsogas
Sensors 2025, 25(17), 5361; https://doi.org/10.3390/s25175361 - 29 Aug 2025
Viewed by 520
Abstract
A new, simple, and accurate assay was developed for the colorimetric determination of nickel ions in 96-well plates. The proposed method utilized the color change immediately visible even to the naked eye during the reaction of Ni(II) ions with dithiothreitol molecules (DTT). The [...] Read more.
A new, simple, and accurate assay was developed for the colorimetric determination of nickel ions in 96-well plates. The proposed method utilized the color change immediately visible even to the naked eye during the reaction of Ni(II) ions with dithiothreitol molecules (DTT). The intensity of the color produced by the formation of the complex between nickel and dithiothreitol is linearly proportional to the concentration of the metal ions in an alkaline environment, at room temperature, and the detection was performed using a mobile phone as the detector. The proposed method had a good linear response between 0.05 and 0.75 mmol L−1 and a detection limit of 0.13 mmol L−1 and was successfully applied for the determination of Ni(II) in bottled and surface water samples. Full article
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