Use of Magnetic Susceptibility Measurement for Analysis of Self-Organized Magnetic Nanoparticles in Biological Systems
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Magnetic susceptibility (MS) measurements for analysis of superparamagnetic iron oxide nanoparticles (SPIONs) in various biological systems were applied. The MS measurements by the Faraday method were carried out at room temperature. On the basis of the MS experimental data and the model based on the Langevin function, the concentrations of magnetically ordered clusters Ncl and paramagnetic centers per magnetic cluster N0 for Fe3O4 SPIONs and superoxide dismutase with manganese (Mn-SOD) in biological systems taken from environmentally “green” and polluted regions of Azerbaijan are found to be in a good agreement with electron spin resonance spectroscopy results.
KeywordsSuperparamagnetic iron oxide nanoparticles Superoxide dismutase with manganese Magnetic susceptibility Electron spin resonance spectroscopy
The authors would like to thank Dr. V.A. Serezhenkov and N.A. Tkachev (Semenov Institute of Chemical Physics of RAS) for their help with ESR measurements. This work was supported in part by the Ministry of Education and Science of Ukraine (projects Nos. 0117 U007142, 0118 U000297, and 0119 U100671).
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