Abstract
In this paper we present a method for low cost and rapid sensing of nucleic acids (NA) for infectious diagnostics, where isothermal rolling circle amplification (RCA) products, specifically generated by the presence of the human pathogen Pseudomonas aeruginosa (PA), are bound to magnetic nanoparticles (MNP). Samples are injected into a microfluidic disc chip and analyzed on a novel magneto-optical platform. The sensing approach is based on the clustering pattern of MNP in a magnetic field and measures the effect of cluster formation on transmitted light using a standard Blu-Ray pickup head. The concentration of DNA target is correlated with an increase of clustered particles.
Original language | English |
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Title of host publication | Proceedings of the 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences |
Publisher | Chemical and Biological Microsystems Society |
Publication date | 2014 |
Pages | 24-26 |
ISBN (Print) | 978-0-9798064-7-6 |
Publication status | Published - 2014 |
Event | 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences - San Antonio, United States Duration: 26 Oct 2014 → 30 Oct 2014 Conference number: 18 https://microtasconferences.org/microtas2014/ |
Conference
Conference | 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences |
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Number | 18 |
Country/Territory | United States |
City | San Antonio |
Period | 26/10/2014 → 30/10/2014 |
Internet address |
Keywords
- Molecular diagnostics
- Magnetic biosensing
- Optical scattering
- DNA amplifications
- Lab- on-a-chip