NMR Relaxometry at Quantification of the Captured Magnetic Nanoparticles by Cells
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Institute of Ecology and Genetic of Micriorganisms, Ural Branch, Russian Academy of Sciences, Perm, Russia
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Publication type: Journal Article
Publication date: 2019-12-01
scimago Q3
wos Q3
SJR: 0.274
CiteScore: 1.7
Impact factor: 1.0
ISSN: 0031918X, 15556190
Materials Chemistry
Condensed Matter Physics
Abstract
The possibility of using the transverse relaxation time T2 of protons in aqueous media for quantitative measurement of the capture of magnetic nanoparticles by cells has been studied and demonstrated. The measurement of T2 was performed on a portable original NMR relaxometer with a measuring cell for a standard well of a biological plate. The novelty of the approach is that quantitative measurements of the capture kinetics were carried out using measurements of the proton relaxation time of the nutrient medium, which is determined by the remaining number of magnetic particles (not captured by the cells) in the medium. To study the kinetics of capture, two types of magnetic nanoparticles were synthesized: magnetite particles Fe3O4 and composite particles Fe@C with an iron-carbon shell structure. The surface of the particles was functionalized with amine-and carboxyl groups. The capture of aminated particles of Fe@C cells is established by microscopy and NMR-relaxometry by measuring the time T2. It is shown that the proposed method makes it possible to register very small concentrations of trapped magnetic nanoparticles equal to tens of pg/cell.
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Citations from 2024:
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Byzov I. V. et al. NMR Relaxometry at Quantification of the Captured Magnetic Nanoparticles by Cells // Physics of Metals and Metallography. 2019. Vol. 120. No. 13. pp. 1341-1346.
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Byzov I. V., Minin A. S., Uimin M. A., Yermakov A. E., Mysik A., Rayev M., Zhakov S. V., Ulitko M. V., Demin A. M., Krasnov V. P., Zubarev I. V. NMR Relaxometry at Quantification of the Captured Magnetic Nanoparticles by Cells // Physics of Metals and Metallography. 2019. Vol. 120. No. 13. pp. 1341-1346.
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TY - JOUR
DO - 10.1134/S0031918X19130027
UR - https://doi.org/10.1134/S0031918X19130027
TI - NMR Relaxometry at Quantification of the Captured Magnetic Nanoparticles by Cells
T2 - Physics of Metals and Metallography
AU - Byzov, I V
AU - Minin, A S
AU - Uimin, M A
AU - Yermakov, A E
AU - Mysik, A.A.
AU - Rayev, M.B
AU - Zhakov, S V
AU - Ulitko, M V
AU - Demin, A M
AU - Krasnov, V P
AU - Zubarev, I V
PY - 2019
DA - 2019/12/01
PB - Pleiades Publishing
SP - 1341-1346
IS - 13
VL - 120
SN - 0031-918X
SN - 1555-6190
ER -
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BibTex (up to 50 authors)
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@article{2019_Byzov,
author = {I V Byzov and A S Minin and M A Uimin and A E Yermakov and A.A. Mysik and M.B Rayev and S V Zhakov and M V Ulitko and A M Demin and V P Krasnov and I V Zubarev},
title = {NMR Relaxometry at Quantification of the Captured Magnetic Nanoparticles by Cells},
journal = {Physics of Metals and Metallography},
year = {2019},
volume = {120},
publisher = {Pleiades Publishing},
month = {dec},
url = {https://doi.org/10.1134/S0031918X19130027},
number = {13},
pages = {1341--1346},
doi = {10.1134/S0031918X19130027}
}
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MLA
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Byzov, I. V., et al. “NMR Relaxometry at Quantification of the Captured Magnetic Nanoparticles by Cells.” Physics of Metals and Metallography, vol. 120, no. 13, Dec. 2019, pp. 1341-1346. https://doi.org/10.1134/S0031918X19130027.
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