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- W4366124328 abstract "Listeria monocytogenes (LM) is an important foodborne pathogen that is associated with a high mortality rate. Currently, there is an urgent need for an inexpensive and rapid assay for the large-scale diagnosis and monitoring of LM. To meet these requirements, we designed a one-step, low-cost platform for the simultaneous amplification and detection of LM based on the CRISPR/Cas12a system with a micro-amplification (named Cas12a-MA). This method utilizes a combination of CRISPR/Cas12a and recombinase polymerase amplification (RPA) in the same vessel to provide a contamination-free platform for rapid nucleic acid detection with high specificity and ultra-sensitivity. In this study, we screened for three specific genes and selected the hly gene in LM as the final target. Our data showed that the number of amplification products plays a crucial role in the function of the CRISPR/Cas12a system. Our method was then further optimized for the specific detection of target DNA on 4.4 CFU/g in 25min. These assays successfully detected LM in spiked pork samples and natural meat samples (pork, beef, and mutton). All results indicate that Cas12a-MA shows great promise for foodborne pathogen detection." @default.
- W4366124328 created "2023-04-19" @default.
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- W4366124328 date "2023-07-01" @default.
- W4366124328 modified "2023-09-26" @default.
- W4366124328 title "A rapid and inexpensive nucleic acid detection platform for Listeria monocytogenes based on the CRISPR/Cas12a system" @default.
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- W4366124328 doi "https://doi.org/10.1016/j.talanta.2023.124558" @default.
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