Portable DNA extraction integrated with LAMP-CRISPR/Cas12a technology for on-site detection of Salmonella Typhimurium
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View abstract on PubMed
Summary
This summary is machine-generated.A new Salmonella typhimurium detection platform offers rapid, on-site testing using loop-mediated isothermal amplification and CRISPR/Cas12a. This field-deployable system provides accurate results within an hour, aiding foodborne illness outbreak control.
Area Of Science
- Microbiology
- Biotechnology
- Food Safety
Background
- Salmonella typhimurium outbreaks necessitate reliable, on-site detection methods.
- Traditional laboratory-based detection is unsuitable for field applications due to equipment and expertise requirements.
Purpose Of The Study
- To develop an integrated, field-deployable nucleic acid detection platform for Salmonella typhimurium.
- To enable rapid, sample-to-answer detection suitable for diverse settings, including low-resource environments.
Main Methods
- Integration of a single-vial loop-mediated isothermal amplification (LAMP)-clustered regularly interspaced short palindromic repeat (CRISPR)/Cas12a system.
- Development of a portable device for DNA extraction, amplification, and fluorescent signal detection.
- Incorporation of a smartphone application for simplified result interpretation.
Main Results
- Accurate detection of Salmonella typhimurium at concentrations of 10^2 CFU/mL in food and environmental samples.
- Achieved a complete sample-to-answer workflow within 1 hour.
- Demonstrated excellent selectivity for Salmonella typhimurium.
Conclusions
- The developed platform provides a rapid, sensitive, and selective on-site detection method for Salmonella typhimurium.
- This technology has significant potential for controlling and responding to foodborne disease outbreaks, particularly in resource-limited settings.
- The integrated system simplifies complex molecular diagnostics for field use.
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