Publication: Nanomagnetic lateral flow assay for high-precision quantification of diagnostically relevant concentrations of serum TSH
Дата
2020
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© 2020 Elsevier B.V.Thyroid stimulating hormone (TSH) is the first-line marker for initial evaluation of the thyroid gland function. We present a lateral flow immunoassay based on superparamagnetic nanolabels for rapid (<25 min) quantitative determination of TSH at a point of care. The demonstrated limit of detection (LOD) of 0.017 μIU/mL in human serum is on the level of third-generation TSH laboratory tests. The wide linear dynamic range of more than 3 orders covers the whole range of clinically relevant TSH concentrations for confident quantitative diagnostics of the gland function from hyper- to hypothyroidism, and different states in-between. The attractive values of LOD and linear dynamic range are due to counting of the superparamagnetic nanolabels over the whole reaction volume by their non-linear magnetization at two frequencies of an alternating magnetic field and detecting the response at combinatorial frequencies. The developed cost-efficient and user-friendly immunoassay can be used for express in vitro diagnostics and long-term quantitative monitoring of thyroid dysfunctions, especially in distant regions, developing countries, and sparsely populated areas.
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Nanomagnetic lateral flow assay for high-precision quantification of diagnostically relevant concentrations of serum TSH / Znoyko, S.L. [et al.] // Talanta. - 2020. - 216. - 10.1016/j.talanta.2020.120961
URI
https://www.doi.org/10.1016/j.talanta.2020.120961
https://www.scopus.com/record/display.uri?eid=2-s2.0-85082921475&origin=resultslist
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https://openrepository.mephi.ru/handle/123456789/20540
https://www.scopus.com/record/display.uri?eid=2-s2.0-85082921475&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000536207600028
https://openrepository.mephi.ru/handle/123456789/20540