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Issue 12, 2000
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mRNA isolation in a microfluidic device for eventual integrationof cDNA library construction

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Abstract

mRNA isolation for the purpose of cDNA library construction was performed in a microfluidic chip device using paramagnetic oligo-dT beads. The simple Y-intersection flow design mixes beads and sample on-chip, and uses magnetic trapping to capture, then release the beads. The capillary gel electrophoresis (CGE) detection of the total unamplified mRNA isolated on-chip, and of a reverse transcription-polymerase chain reaction (RT-PCR) amplified rare gene indicated that mRNA could be captured by oligo-dT beads on-chip, had very good integrity and was suitable for constructing a cDNA library. The limit of detection for the rare bicoid gene of Drosophila Melanogaster corresponded to the capture of approximately 2.8 ng of total mRNA from 0.85 μg of total RNA (TRNA) within the microchip. As much as 34 ng of total mRNA was estimated to be captured from 10 μg of TRNA.

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Publication details

The article was received on 25 Jul 2000, accepted on 11 Sep 2000 and first published on 26 Oct 2000


Article type: Communication
DOI: 10.1039/B005999O
Citation: Analyst, 2000,125, 2176-2179
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    mRNA isolation in a microfluidic device for eventual integration of cDNA library construction

    G. Jiang and D. J. Harrison, Analyst, 2000, 125, 2176
    DOI: 10.1039/B005999O

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