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|Title:||Magnetoimpedance thin film sensor for detecting of stray fields of magnetic particles in blood vessel|
|Authors:||Melnikov, G. Yu.|
Lepalovskij, V. N.
Svalov, A. V.
Safronov, A. P.
Kurlyandskaya, G. V.
|Citation:||Magnetoimpedance thin film sensor for detecting of stray fields of magnetic particles in blood vessel / G. Yu. Melnikov, V. N. Lepalovskij, A. V. Svalov, et al. — DOI 10.3390/s21113621 // Sensors. — 2021. — Vol. 21. — Iss. 11. — 3621.|
|Abstract:||Multilayered [FeNi (100 nm)/Cu (3 nm)]5/Cu (500 nm)/[Cu (3 nm)/[FeNi (100 nm)]5 structures were used as sensitive elements of the magnetoimpedance (MI) sensor prototype for model experiments of the detection of magnetic particles in blood vessel. Non-ferromagnetic cylindrical polymer rod with a small magnetic inclusion was used as a sample mimicking thrombus in a blood vessel. The polymer rod was made of epoxy resin with an inclusion of an epoxy composite contain-ing 30% weight fraction of commercial magnetite microparticles. The position of the magnetic inclusion mimicking thrombus in the blood vessel was detected by the measurements of the stray magnetic fields of microparticles using MI element. Changes of the MI ratio in the presence of composite can be characterized by the shift and the decrease of the maximum value of the MI. We were able to detect the position of the magnetic composite sample mimicking thrombus in blood vessels. Comsol modeling was successfully used for the analysis of the obtained experimental results and the understanding of the origin the MI sensitivity in proposed configuration. We describe possible applications of studied configuration of MI detection for biomedical applications in the field of thrombus state evaluation and therapy. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.|
|metadata.dc.description.sponsorship:||This research was in part founded by Russian Science Foundation, grant number 18-19-00090 and in part by the Ministry of Science and Higher Education of the Russian Federation (project No. FEUZ -2020-0051) and Proyecto Elkartek AVANSITE of the Basque Government.|
|RSCF project card:||18-19-00090|
|Appears in Collections:||Научные публикации, проиндексированные в SCOPUS и WoS CC|
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