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A magneto-DNA nanoparticle system for rapid detection and phenotyping of bacteria
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A magneto-DNA nanoparticle system for rapid detection and phenotyping of bacteria
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Journal Article
A magneto-DNA nanoparticle system for rapid detection and phenotyping of bacteria
2013
Overview
So far, although various diagnostic approaches for pathogen detection have been proposed, most are too expensive, lengthy or limited in specificity for clinical use. Nanoparticle systems with unique material properties, however, circumvent these problems and offer improved accuracy over current methods. Here, we present novel magneto-DNA probes capable of rapid and specific profiling of pathogens directly in clinical samples. A nanoparticle hybridization assay, involving ubiquitous and specific probes that target bacterial 16S rRNAs, was designed to detect amplified target DNAs using a miniaturized NMR device. Ultimately, the magneto-DNA platform will allow both universal and specific detection of various clinically relevant bacterial species, with sensitivity down to single bacteria. Furthermore, the assay is robust and rapid, simultaneously diagnosing a panel of 13 bacterial species in clinical specimens within 2 h. The generic platform described could be used to rapidly identify and phenotype pathogens for a variety of applications.
A magnetic detection assay based on nucleic acid probes and nanoparticles can rapidly identify a variety of bacterial species in clinical specimens with sensitivity down to single bacteria, offering a useful technology platform for point-of-care diagnostics.
Publisher
Nature Publishing Group UK,Nature Publishing Group
