@inproceedings{d2e820742d7940fd8971906c28fd950b,
title = "Development of a system for on-disc isothermal in vitro amplification and detection of bacterial RNA",
abstract = "We present a centrifugal microfluidic 'Lab-on-a-Disc' (LoaD) system capable of implementing nucleic acid in vitro amplification using non-contact heating and fluorescence detection. The system functionality is verified by implementing a Nucleic Acid Sequence Based Amplification (NASBA) reaction, targeting the tmRNA transcript of Haemophilus influenzae. The NASBA assay incorporates fluorescent molecular beacon probes reporting target tmRNA amplification for endpoint detection. The system implements non-contact IR heating, to heat the NASBA reaction to the required target temperatures during denaturation and amplification steps. The LoaD control system facilitates spin speed and chamber positioning for heating and fluorescence detection. The LoaD alignment system uses magnetic fields to locate and lock the chamber in the required position (heating or detection). The NASBA assay was implemented on the system using Haemophilus influenzae tmRNA over the range 102-104 cell equivalent (CE) units. For comparison, identical qNASBA assays were implemented on a Roche LightCycler 2.0 over this concentration range. The motivation for such systems is to implement fast point of care tests in a healthcare setting. Rapid H. Influenzae identification is crucial for efficient treatment to avoid serious health effects (e.g. childhood meningitis). Molecular diagnostic tests offer the sensitivity and speed required for such applications.",
keywords = "centrifugal disc, fluorescence detection, IR heating, Isothermal amplification, tmRNA",
author = "Des Brennan and Helena Coughla and Eoin Clancy and Nikolay Dimov and Thomas Barry and David Kinahan and Jens Ducree and Smith, {Terry J.} and Paul Galvin",
note = "Funding Information: ACKNOWLEDGEMENTS This work was supported by Science Foundation Ireland as part of the Biomedical Diagnostics Institute Centre for Science Excellence and Technology (10/CE/B1821). Publisher Copyright: {\textcopyright} 2017 IEEE.; 2017 IEEE Biomedical Circuits and Systems Conference, BioCAS 2017 ; Conference date: 19-10-2017 Through 21-10-2017",
year = "2018",
month = mar,
day = "23",
doi = "10.1109/BIOCAS.2017.8325071",
language = "English",
series = "2017 IEEE Biomedical Circuits and Systems Conference, BioCAS 2017 - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
pages = "1--4",
booktitle = "2017 IEEE Biomedical Circuits and Systems Conference, BioCAS 2017 - Proceedings",
address = "United States",
}