Multi-Probe Nano-Genomic Biosensor to Detect S. aureus from Magnetically-Extracted Food Samples.

Autor:	Boodoo C; Nano-Biosensors Lab, Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI 48824, USA.; Global Alliance for Rapid Diagnostics, Michigan State University, East Lansing, MI 48824, USA., Dester E; Nano-Biosensors Lab, Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI 48824, USA.; Global Alliance for Rapid Diagnostics, Michigan State University, East Lansing, MI 48824, USA., David J; Nano-Biosensors Lab, Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI 48824, USA.; Department of Human Biology, Michigan State University, East Lansing, MI 48824, USA., Patel V; Nano-Biosensors Lab, Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI 48824, USA.; Department of Mechanical Engineering, Michigan State University, East Lansing, MI 48824, USA., Kc R; Statistical Consulting Center, College of Agriculture and Natural Resources, Michigan State University, East Lansing, MI 48824, USA., Alocilja EC; Nano-Biosensors Lab, Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI 48824, USA.; Global Alliance for Rapid Diagnostics, Michigan State University, East Lansing, MI 48824, USA.
Jazyk:	angličtina
Zdroj:	Biosensors [Biosensors (Basel)] 2023 Jun 02; Vol. 13 (6). Date of Electronic Publication: 2023 Jun 02.
DOI:	10.3390/bios13060608
Abstrakt:	One of the most prevalent causes of foodborne illnesses worldwide is staphylococcal food poisoning. This study aimed to provide a robust method to extract the bacteria Staphylococcus aureus from food samples using glycan-coated magnetic nanoparticles (MNPs). Then, a cost-effective multi-probe genomic biosensor was designed to detect the nuc gene of S. aureus rapidly in different food matrices. This biosensor utilized gold nanoparticles and two DNA oligonucleotide probes combined to produce a plasmonic/colorimetric response to inform users if the sample was positive for S. aureus . In addition, the specificity and sensitivity of the biosensor were determined. For the specificity trials, the S. aureus biosensor was compared with the extracted DNA of Escherichia coli , Salmonella enterica serovar Enteritidis (SE), and Bacillus cereus. The sensitivity tests showed that the biosensor could detect as low as 2.5 ng/µL of the target DNA with a linear range of up to 20 ng/µL of DNA. With further research, this simple and cost-effective biosensor can rapidly identify foodborne pathogens from large-volume samples.
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu