Abstract
Rapid and accurate detection of single-nucleotide polymorphism (SNP) in pathogenic mutants is crucial for broad fields from food safety monitoring to disease diagnostics and prognosis. Here, we developed a nanopore single-molecule sensor, coupled with the locked nucleic acid (LNA) technique, to accurately discriminate SNPs for detection of Shiga toxin producing Escherichia coli (STEC) O157:H7 pathogen serotype, and cancer-derived driver mutations EGFR L858R and KRAS G12D. This sensitive method, with a simplified, low cost, easy-to-operate LNA design, can be applied in food science and medical detection that need rapid and accurate determination of genetic variations.
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