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Nano Lett. 2011 May 11;11(5):2083-7. doi: 10.1021/nl2005687. Epub 2011 Apr 14.

Functionalized micromachines for selective and rapid isolation of nucleic acid targets from complex samples.

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1
Department of Nanoengineering, University of California-San Diego, La Jolla, California 92093, United States.

Abstract

The transport properties of single-strand DNA probe-modified self-propelling micromachines are exploited for "on-the-fly" hybridization and selective single-step isolation of target nucleic acids from "raw" microliter biological samples (serum, urine, crude E. coli lysate, saliva). The rapid movement of the guided modified microrockets induces fluid convection, which enhances the hybridization efficiency, thus enabling the rapid and selective isolation of nucleic acid targets from untreated samples. The integration of these autonomous microrockets into a lab-on-chip device that provides both nucleic acid isolation and downstream analysis could thus be attractive for diverse applications.

PMID:
21491941
DOI:
10.1021/nl2005687
[Indexed for MEDLINE]
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