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Kinetic Fingerprinting to Identify and Count Single Nucleic Acids

Overview
Journal Nat Biotechnol
Specialty Biotechnology
Date 2015 Jun 23
PMID 26098451
Citations 49
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Abstract

MicroRNAs (miRNAs) have emerged as promising diagnostic biomarkers. We introduce a kinetic fingerprinting approach called single-molecule recognition through equilibrium Poisson sampling (SiMREPS) for the amplification-free counting of single unlabeled miRNA molecules, which circumvents thermodynamic limits of specificity and virtually eliminates false positives. We demonstrate high-confidence, single-molecule detection of synthetic and endogenous miRNAs in both buffer and minimally treated biofluids, as well as >500-fold discrimination between single nucleotide polymorphisms.

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