Droplet microfluidics for amplification-free genetic detection of single cells

In this article we present a novel droplet microfluidic chip enabling amplification-free detection of single pathogenic cells. The device streamlines multiple functionalities to carry out sample digitization, cell lysis, probe-target hybridization for subsequent fluorescent detection. A peptide nucl...

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Veröffentlicht in:Lab on a chip 2012-09, Vol.12 (18), p.3341-3347
Hauptverfasser: Rane, Tushar D, Zec, Helena C, Puleo, Chris, Lee, Abraham P, Wang, Tza-Huei
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container_issue 18
container_start_page 3341
container_title Lab on a chip
container_volume 12
creator Rane, Tushar D
Zec, Helena C
Puleo, Chris
Lee, Abraham P
Wang, Tza-Huei
description In this article we present a novel droplet microfluidic chip enabling amplification-free detection of single pathogenic cells. The device streamlines multiple functionalities to carry out sample digitization, cell lysis, probe-target hybridization for subsequent fluorescent detection. A peptide nucleic acid fluorescence resonance energy transfer probe (PNA beacon) is used to detect 16S rRNA present in pathogenic cells. Initially the sensitivity and quantification abilities of the platform are tested using a synthetic target mimicking the actual expression level of 16S rRNA in single cells. The capability of the device to perform "sample-to-answer" pathogen detection of single cells is demonstrated using E. coli as a model pathogen.
doi_str_mv 10.1039/c2lc40537g
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source MEDLINE; Royal Society Of Chemistry Journals; Alma/SFX Local Collection
subjects Colias
Escherichia coli - isolation & purification
Escherichia coli - metabolism
Fluorescence Resonance Energy Transfer
Microfluidics - instrumentation
Microfluidics - methods
Nucleic Acid Hybridization
Peptide Nucleic Acids - chemistry
Peptide Nucleic Acids - metabolism
RNA, Ribosomal, 16S - metabolism
title Droplet microfluidics for amplification-free genetic detection of single cells
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