Biosensors for Food Safety

A special issue of Biosensors (ISSN 2079-6374). This special issue belongs to the section "Biosensor and Bioelectronic Devices".

Deadline for manuscript submissions: 5 May 2025 | Viewed by 2475

Special Issue Editors


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Guest Editor
Senior Associate Dean, School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens, GA 30602, USA
Interests: electrochemical sensors; biosensors; bio-electrochemistry; energy storage and conversion

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Guest Editor
Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL, USA
Interests: food safety; biosensors; enzyme catalysis

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Guest Editor
College of Engineering, University of Georgia, Athens, GA, USA
Interests: bio-electrochemistry; sensors; biotechnology; microbiology

Special Issue Information

Dear Colleagues,

Ensuring food safety across the supply chain is critical to minimizing foodborne disease outbreaks. The detection and quantitation of microbial pathogens and toxins in real time remains an unmet challenge because of the complex nature of food matrices and the trace levels of these pathogens and toxins that can cause disease. This Special Issue compiles recent biosensor research that combines the selectivity of biorecognition elements, novel transduction architectures, microfluidics, and novel data processing algorithms. The literature on biosensors for food safety is typically abundant and justifiably focuses on achieving low detection limits. However, the robustness, reproducibility, scalability, and applicability of many biosensors are rarely discussed, especially in the context of sample preparation. To maximize the impact of this Special Issue, authors are encouraged to include such discussion and perspectives in a special section within the conclusions section of each article.

Prof. Dr. Ramaraja Ramasamy
Dr. José I. Reyes-De-Corcuera
Dr. Baviththira Suganthan
Guest Editors

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Keywords

  • bacteria
  • toxins
  • pesticidal residue/pesticides
  • fertilizers
  • fungus
  • viruses
  • food borne pathogens
  • biosensors
  • microfluidics

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Published Papers (1 paper)

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Research

17 pages, 6095 KiB  
Article
A Bacteriophage Protein-Based Impedimetric Electrochemical Biosensor for the Detection of Campylobacter jejuni
by Baviththira Suganthan, Ashley M. Rogers, Clay S. Crippen, Hamid Asadi, Or Zolti, Christine M. Szymanski and Ramaraja P. Ramasamy
Biosensors 2024, 14(8), 402; https://doi.org/10.3390/bios14080402 - 21 Aug 2024
Cited by 2 | Viewed by 1849
Abstract
Campylobacter jejuni is a common foodborne pathogen found in poultry that can cause severe life-threatening illnesses in humans. It is important to detect this pathogen in food to manage foodborne outbreaks. This study reports a novel impedimetric phage protein-based biosensor to detect C. [...] Read more.
Campylobacter jejuni is a common foodborne pathogen found in poultry that can cause severe life-threatening illnesses in humans. It is important to detect this pathogen in food to manage foodborne outbreaks. This study reports a novel impedimetric phage protein-based biosensor to detect C. jejuni NCTC 11168 at 100 CFU/mL concentrations using a genetically engineered receptor-binding phage protein, FlaGrab, as a bioreceptor. The electrochemical impedance spectroscopy (EIS) technique was employed to measure changes in resistance upon interaction with C. jejuni. The sensitivity of the phage protein-immobilized electrode was assessed using the various concentrations of C. jejuni NCTC 11168 ranging from 102–109 colony forming units (CFU)/mL). The change transfer resistance of the biosensor increased with increasing numbers of C. jejuni NCTC 11168 cells. The detection limit was determined to be approximately 103 CFU/mL in the buffer and 102 CFU/mL in the ex vivo samples. Salmonella enterica subsp. enterica serotype Typhimurium-291RH and Listeria monocytogenes Scott A were used as nontarget bacterial cells to assess the specificity of the developed biosensor. Results showed that the developed biosensor was highly specific toward the target C. jejuni NCTC 11168, as no signal was observed for the nontarget bacterial cells. Full article
(This article belongs to the Special Issue Biosensors for Food Safety)
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