Automated on-disc total RNA extraction from whole blood towards point-of-care for early stage diagnostics

N. Dimov, J. Gaughran, E. Clancy, T. Barry, T. J. Smith, J. Ducree

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We present a novel integrated, centrifugo-pneumatic micro-homogenizer (μHomogenizer) for automated sample preparation and total RNA extraction from whole blood. Using a Trizol based protocol, this novel μHomogenizer efficiently lyses whole blood spiked with E. coli, retains the organic-mixed fraction and yields the aqueous phase with the total RNA content. By the interplay of microfluidic design and a protocol of rotational frequencies, we concatenate (and parallelize) a sequence of five subsequent liquid handling operations that complete in less than 10 minutes. A comparison of the total nucleotide content yields similar performance as conventional, essentially manual off-disc sample preparation methods.

Original languageEnglish
Title of host publication2013 Transducers and Eurosensors XXVII
Subtitle of host publicationThe 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013
Pages2548-2551
Number of pages4
DOIs
Publication statusPublished - 2013
Event2013 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013 - Barcelona, Spain
Duration: 16 Jun 201320 Jun 2013

Conference

Conference2013 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013
Country/TerritorySpain
CityBarcelona
Period16/06/1320/06/13

Keywords

  • bacterial infections
  • On-disc diagnostics
  • RNA
  • spiked blood
  • three-phase extraction

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