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An inexpensive, fast and sensitive quantitative lateral flow magneto-immunoassay for total prostate specific antigen

Barnett, Jacqueline; Wraith, Patrick; Kiely, Janice; Persad, Raj; Hurley, Katrina; Luxton, Richard W.; Hawkins, Peter

Authors

Patrick Wraith patrick.wraith@uwe.ac.uk

Janice Kiely Janice.Kiely@uwe.ac.uk
Professor in Bio-electronics/Res In CoDi

Raj Persad

Katrina Hurley

Richard Luxton Richard.Luxton@uwe.ac.uk
Research Centre Director-IBST/Professor

Peter Hawkins peter.hawkins@uwe.ac.uk



Abstract

We describe the detection characteristics of a device the Resonant Coil Magnetometer (RCM) to quantify paramagnetic particles (PMPs) in immunochromatographic (lateral flow) assays. Lateral flow assays were developed using PMPs for the measurement of total prostate specific antigen (PSA) in serum samples. A detection limit of 0.8 ng/mL was achieved for total PSA using the RCM and is at clinically significant concentrations. Comparison of data obtained in a pilot study from the analysis of serum samples with commercially available immunoassays shows good agreement. The development of a quantitative magneto-immunoassay in lateral flow format for total PSA suggests the potential of the RCM to operate with many immunoassay formats. The RCM has the potential to be modified to quantify multiple analytes in this format. This research shows promise for the development of an inexpensive device capable of quantifying multiple analytes at the point-of-care using a magneto-immunoassay in lateral flow format. © 2014 by the authors.

Journal Article Type Article
Publication Date Jan 1, 2014
Journal Biosensors
Electronic ISSN 2079-6374
Publisher MDPI
Peer Reviewed Peer Reviewed
Volume 4
Issue 3
Pages 204-220
APA6 Citation Luxton, R., Barnett, J. M., Barnett, J., Wraith, P., Kiely, J., Persad, R., …Luxton, R. W. (2014). An inexpensive, fast and sensitive quantitative lateral flow magneto-immunoassay for total prostate specific antigen. Biosensors, 4(3), 204-220. https://doi.org/10.3390/bios4030204
DOI https://doi.org/10.3390/bios4030204
Keywords paramagnetic particles, resonant coil magnetometer, prostate specific antigen
Publisher URL http://dx.doi.org/10.3390/bios4030204

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