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Molecules
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Nanostructured Electrochemical Sensors for Food Safety and Quality Control
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Nanostructured Electrochemical Sensors for Food Safety and Quality Control

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Electrochemistry".

Deadline for manuscript submissions: closed (31 January 2023) | Viewed by 10331

Special Issue Editors

Dr. Mariana Emilia Ghica

E-Mail Website
Guest Editor
Chemical Process Engineering and Forest Products Research Centre (CIEPQPF), Department of Chemical Engineering, University of Coimbra, Coimbra, Portugal
Interests: nanostructured electrode materials; electrochemical (bio)sensors; nanotechnology; aerogels; environmental remediation; biomedical applications; DNA antioxidants
Special Issues, Collections and Topics in MDPI journals
Dr. Rasa Pauliukaite

E-Mail Website
Guest Editor
Department of Nanoengineering, Center for Physical Sciences and Technology, Savanoriu Ave 231, LT-02300 Vilnius, Lithuania
Interests: electroanalytical chemistry; conducting polymers; electrochemical biosensors; functional nanomaterials for electrochemistry; carbon nanomaterials

Special Issue Information

Dear colleagues,

We cordially invite you to contribute to this Special Issue of Molecules entitled “Nanostructured electrochemical sensors for food safety and quality control.”

Foodborne-related diseases caused by additives and contaminants represent a significant challenge for food processing industries. Therefore, low-cost, rapid, and sensitive methods are necessary to detect food additives and contaminants in order to minimise the public health risks.

Electrochemistry offers simple and robust analytical tools with several advantages over conventional methods. The development of a wide range of nanomaterials has opened the horizon for their applicability in the design of electrochemical sensing devices in different areas, food safety and quality control being one of them. Nanomaterial-based electrochemical sensors have garnered enormous attention due to their high sensitivity and selectivity, simple preparation, low-cost, real time monitoring, miniaturisation, and portability, among others.

The aim of this Special Issue is to provide the latest findings in this research field, namely development of innovative nanostructured electrochemical devices, their preparation, optimisation, characterisation and application to food and beverages safety and quality control. We invite original research papers and comprehensive reviews covering any experimental and computational approaches related to the abovementioned topics. Works dealing with simple, low-cost preparation architectures that can easily be integrated into portable devices are highly appreciated.

Dr. Mariana Emilia Ghica
Dr. Rasa Pauliukaite
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 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

  • electrochemical sensors
  • nanomaterials
  • foodborne disease
  • additives
  • contaminants
  • food and beverages
  • safety and quality control
  • computation
  • molecular dynamics
  • portable devices

Published Papers (3 papers)

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Research

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13 pages, 26344 KiB  
Article
Novel Amperometric Mercury-Selective Sensor Based on Organic Chelator Ionophore
by Basant Elsebai, Mariana Emilia Ghica, Mohammed Nooredeen Abbas and Christopher M. A. Brett
Molecules 2023, 28(6), 2809; https://0-doi-org.brum.beds.ac.uk/10.3390/molecules28062809 - 20 Mar 2023
Cited by 2 | Viewed by 1130
Abstract
A novel amperometric sensor for the direct determination of toxic mercury ions, Hg2+, based on the organic chelator ionophore N, N di (2-hydroxy-5-[(4-nitrophenyl)diazenyl]benzaldehyde) benzene-1,2-diamine (NDBD), and multiwalled carbon nanotubes (MWCNT) immobilized on a glassy carbon electrode surface was developed. The parameters [...] Read more.
A novel amperometric sensor for the direct determination of toxic mercury ions, Hg2+, based on the organic chelator ionophore N, N di (2-hydroxy-5-[(4-nitrophenyl)diazenyl]benzaldehyde) benzene-1,2-diamine (NDBD), and multiwalled carbon nanotubes (MWCNT) immobilized on a glassy carbon electrode surface was developed. The parameters influencing sensor performance including the ionophore concentration, the applied potential, and electrolyte pH were optimized. The sensor response to Hg2+ was linear between 1–25 µM with a limit of detection of 60 nM. Interferences from other heavy metal ions were evaluated and the sensor showed excellent selectivity towards Hg2+. The method was successfully applied to the determination of mercury ions in milk and water samples. Full article
(This article belongs to the Special Issue Nanostructured Electrochemical Sensors for Food Safety and Quality Control)
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Review

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40 pages, 4113 KiB  
Review
Molecularly Imprinted Polymers Combined with Electrochemical Sensors for Food Contaminants Analysis
by Dounia Elfadil, Abderrahman Lamaoui, Flavio Della Pelle, Aziz Amine and Dario Compagnone
Molecules 2021, 26(15), 4607; https://0-doi-org.brum.beds.ac.uk/10.3390/molecules26154607 - 29 Jul 2021
Cited by 59 | Viewed by 5706
Abstract
Detection of relevant contaminants using screening approaches is a key issue to ensure food safety and respect for the regulatory limits established. Electrochemical sensors present several advantages such as rapidity; ease of use; possibility of on-site analysis and low cost. The lack of [...] Read more.
Detection of relevant contaminants using screening approaches is a key issue to ensure food safety and respect for the regulatory limits established. Electrochemical sensors present several advantages such as rapidity; ease of use; possibility of on-site analysis and low cost. The lack of selectivity for electrochemical sensors working in complex samples as food may be overcome by coupling them with molecularly imprinted polymers (MIPs). MIPs are synthetic materials that mimic biological receptors and are produced by the polymerization of functional monomers in presence of a target analyte. This paper critically reviews and discusses the recent progress in MIP-based electrochemical sensors for food safety. A brief introduction on MIPs and electrochemical sensors is given; followed by a discussion of the recent achievements for various MIPs-based electrochemical sensors for food contaminants analysis. Both electropolymerization and chemical synthesis of MIP-based electrochemical sensing are discussed as well as the relevant applications of MIPs used in sample preparation and then coupled to electrochemical analysis. Future perspectives and challenges have been eventually given. Full article
(This article belongs to the Special Issue Nanostructured Electrochemical Sensors for Food Safety and Quality Control)
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22 pages, 3158 KiB  
Review
Electrochemical Peptide-Based Sensors for Foodborne Pathogens Detection
by Mihaela Tertis, Oana Hosu, Bogdan Feier, Andreea Cernat, Anca Florea and Cecilia Cristea
Molecules 2021, 26(11), 3200; https://0-doi-org.brum.beds.ac.uk/10.3390/molecules26113200 - 27 May 2021
Cited by 24 | Viewed by 2796
Abstract
Food safety and quality control pose serious issues to food industry and public health domains, in general, with direct effects on consumers. Any physical, chemical, or biological unexpected or unidentified food constituent may exhibit harmful effects on people and animals from mild to [...] Read more.
Food safety and quality control pose serious issues to food industry and public health domains, in general, with direct effects on consumers. Any physical, chemical, or biological unexpected or unidentified food constituent may exhibit harmful effects on people and animals from mild to severe reactions. According to the World Health Organization (WHO), unsafe foodstuffs are especially dangerous for infants, young children, elderly, and chronic patients. It is imperative to continuously develop new technologies to detect foodborne pathogens and contaminants in order to aid the strengthening of healthcare and economic systems. In recent years, peptide-based sensors gained much attention in the field of food research as an alternative to immuno-, apta-, or DNA-based sensors. This review presents an overview of the electrochemical biosensors using peptides as molecular bio-recognition elements published mainly in the last decade, highlighting their possible application for rapid, non-destructive, and in situ analysis of food samples. Comparison with peptide-based optical and piezoelectrical sensors in terms of analytical performance is presented. Methods of foodstuffs pretreatment are also discussed. Full article
(This article belongs to the Special Issue Nanostructured Electrochemical Sensors for Food Safety and Quality Control)
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