DNA sensing technology a useful food scanning tool

Food safety issues remain a worldwide challenge due to the presence of contaminants. DNA-based sensors have been suggested to help detect molecules such as biomarkers, contaminants, drugs and small molecules. Electrochemical and optical DNA sensors combined with nanomaterials or functional polymers...

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Bibliographic Details
Published in:TrAC, Trends in analytical chemistry (Regular ed.) Trends in analytical chemistry (Regular ed.), 2022-09, Vol.154, p.116679, Article 116679
Main Authors: Melinte, Gheorghe, Hosu, Oana, Cristea, Cecilia, Marrazza, Giovanna
Format: Article
Language:English
Subjects:
Aptasensor
Electrochemistry
Food contaminants
Genosensor
Nanomaterials
Optical
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Summary:Food safety issues remain a worldwide challenge due to the presence of contaminants. DNA-based sensors have been suggested to help detect molecules such as biomarkers, contaminants, drugs and small molecules. Electrochemical and optical DNA sensors combined with nanomaterials or functional polymers offer real-time and rapid analysis of target analytes in complex samples. The applications of DNA sensing technology in food analysis have shown remarkable progress. Therefore, the proposed critical review aims to summarize the progress of DNA-based optical and electrochemical biosensors that aim to detect contaminants from food samples developed during the last four years. Applied DNA sensors for food contaminants analysis were categorized according to the type of contaminants, the nanomaterials used in the design or their amplification sensing strategies. New trends, main challenges, and future outlook for the use of DNA-based sensor designs in food security are discussed. [Display omitted] •Recent progress of electrochemical and optical DNA sensors is reviewed and discussed.•The applications of nanomaterials and detection principles of DNA-sensors are summarized.•Challenges and future role of DNA sensors for improving food safety is discussed.•Evaluates challenges, on-site analysis and applicability beyond proof of concept.•Emerging DNA-based sensors are promising as food safety tools.
ISSN:0165-9936
1879-3142
DOI:10.1016/j.trac.2022.116679