Abstract
Plant leaves (Eldar pine (Pinus eldarica M.), fig (Ficus carica L.), and olive (Olea europaea L.)), collected in territories with different ecological conditions, of the Absheron Peninsula (Azerbaijan Republic) were studied by electron paramagnetic resonance spectroscopy (EPR). The generation of nanophase iron oxide magnetic particles in biological systems under the influence of stress factors was revealed. It was found that the process of biomineralization plays a role in the formation of biogenic iron oxide magnetic nanoparticles in plants and the generation of magnetite crystals in biological tissues, and stress factors have a stimulating effect on this phenomenon.
Highlights
Magnetic nanoparticles are widely found in many biological objects
Two types of signals were detected in the recorded spectra, a free-radical signal (g 2.0023) and a broad electron paramagnetic resonance spectroscopy (EPR) signal (g 2.32; ΔH 32 Magnetic field (mT)), characterizing nanophase iron oxide magnetic particles. e behavior of the signal parameters suggests that the samples collected from Babek Avenue contain more biogenic magnetic nanoparticles, and it is possible to assume that this area is more exposed to environmental pollution (Figure 1)
EPR studies with the leaves of three different tree plants in Absheron (Pinus eldarica M., Olea Europea L., and Ficus carica L.) have once again shown that, under stress, they generate signals characterizing iron oxide magnetic nanoparticles (g 2.32; ΔH 40 mT). is result is of great importance in biomedical research
Summary
Magnetic nanoparticles are widely found in many biological objects. Long before the synthesis of the first magnetic nanoparticles, they were discovered in natural biological complexes. It has been established that magnetic nanoparticles play a role in the metabolism and activity of living organisms [1,2,3,4,5]. E most common magnetic nanoparticles in living organisms are magnetite (Fe3O4) and maghemite (c-Fe2O3). Magnetic nanoparticles can be found in bacteria and cells of higher living organisms [6,7,8,9]. It is believed that anisotropic magnetic nanoparticles in the cell can interact with the earth’s magnetic field and transmit relevant information to other receptors in the body [10,11,12,13]. Since the application of magnetic nanoparticles in various fields is very important, it is very topical to carry out their synthesis by biological methods, as well as to clarify the role of biological processes in the synthesis of these nanoparticles
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