Features of electron spin resonance in biological objects of Pleurotus ostreatus grown on a substrate with magnetite injection
| Autor: | T.V. Kalmykova, S.I. Tarapov, A.S. Vakula, S.V. Gorobets, O.Yu. Gorobets, Yu.I. Gorobets, M.A. Bulaevskaya, K.A. Getmanenko |
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| Jazyk: | English<br />Russian<br />Ukrainian |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Радиофизика и электроника, Vol 25, Iss 2, Pp 38-45 (2020) |
| Druh dokumentu: | article |
| ISSN: | 1028-821X 2415-3400 |
| DOI: | 10.15407/rej2020.02.038 |
| Popis: | Subject and Purpose. Synthesis of biological sorbents has become one of the ways to solve the problem of environment contamination with heavy metals. Today, studying properties of biosorbents with injection of magnetic nanoparticles is important. Thus, injection of magnetic nanoparticles of magnetite (Fe3O4) improves absorption properties of biosorbents. The subject of the present work is magnetic resonance properties of nanoparticles inside biosorbents, such as macromycetes like Pleurotus ostreatus. The purpose is to examine these magnetic resonance properties and analyze the state of magnetite nanoparticles inside Pleurotus ostreatus. Methods and Methodology. The X-band Electron Spin Resonance (ESR) method is employed to register ferromagnetic resonance (FMR) spectra at T = 294 K. TEM-images of magnetic nanoparticles are made in the transmission electron microscope. Mathematical modeling for the properties of the arising clusters of magnetic Fe3O4 nanoparticles inside macromycetes Pleurotus ostreatus is performed using a phenomenological model upon the well-known Kittel equation. A model enhancement is proposed in the case of interacting nanoparticles inside an ellipsoidal magnetic cluster. Results. It has been shown that Fe3O4 nanoparticles are well absorbed by macromycetes and gather into structural clusters regardless of the concentration of magnetic nanoparticles injected. These magnetic clusters of magnetic nanoparticles have ellipsoidal shapes with an aspect ratio of 3:1:1. The developed mathematical model makes it possible to obtain dimensions of magnetic clusters from the FMR spectra and evaluate their shape and mutual magnetic interaction. The mathematical modeling results are in good agreement with TEM-images of these clusters inside Pleurotus ostreatus. As a result of modeling are in good agreement with the TEM-images of these clusters inside Pleurotus ostreatus. Conclusion. The presented results will contribute to the development of non-destructive testing of the state of biological sorbents using magnetic resonance radio spectroscopy methods. |
| Databáze: | Directory of Open Access Journals |
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