alexa Improved DNA extraction efficiency from low level cell numbers using a silica monolith based micro fluidic device.
General Science

General Science

Journal of Forensic Research

Author(s): Kashkary L, Kemp C, Shaw KJ, Greenway GM, Haswell SJ

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Abstract The evaluation of a micro fluidic system with an integrated silica monolith for performing DNA extraction from limited biological samples has been carried out. Low DNA target concentrations usually require the addition of carrier RNA to ensure desired extraction efficiencies. Here, we demonstrate a micro fluidic extraction system with increasingly efficient extraction performances for biological samples containing <15 ng of total DNA without the need of adding carrier nucleic acids. All extracted DNA showed successful amplification via the polymerase chain reaction demonstrating both the effectiveness of the proposed system at removing potential inhibitors and yielding good quality DNA. The work presented here beneficially identifies reduced sample volumes/concentrations as suitable for processing with respect to downstream analysis by enabling pre-concentration of the biological sample, particularly important when dealing with clinical or forensic specimens. Copyright © 2012 Elsevier B.V. All rights reserved. This article was published in Anal Chim Acta and referenced in Journal of Forensic Research

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