Electron Paramagnetic Resonance Studies of Irradiated Grape Snails (Helix pomatia) and Investigation of Biophysical Parameters

Abstract

A study of grape snails (Helix pomatia) using the electron paramagnetic resonance (EPR) spectroscopy method, where shells were exposed to ionizing gamma radiation, indicated that the effect of radiation up to certain doses results in the emergence of magnetic properties in the organism. The identification of the EPR spectra of the body and shell parts of the control and irradiated grape snails separately showed that more iron oxide magnetic nanoparticles are generated in the body part of the grape snail compared to the shells. A linear increase in free radical signals (g = 2.0023) in the body and shell parts of grape snails, and a non-monotonic change in the broad EPR signal (g = 2.32) characterizing iron oxide magnetic nanoparticles was determined depending on the dose of ionizing gamma radiation. Additionally, the obtained results showed that grape snails can be used as bioindicators for examining the ecological state of the environment. At the same time, the radionuclide composition of the body and shell parts of the grape snails and their specific activities were determined by CANBERRA gamma spectroscopy. The FTIR spectra of mucin, a liquid secreted by snails, were recorded.

INFLUENCE OF DINITROSALICYLIC ACID ON THE PROTECTIVE SYSTEM OF COTTON SEEDLINGS (Gossypium hirsutum L.)

“…A very broad signal was observed in the central part of the spectrum (B=600 G, g=2.035). The chemical source of this signal is related to the trivalent iron ion (Nasibova et al, 2023). From Figures 1 and 2, it can be seen that the intensity of the broad line decreases significantly when moving from the root samples to the leaf samples, but the intensity of the central singlet increases and this line becomes more prominent in the overall spectrum.…”

Future Prospects of Biomaterials in Nanomedicine

“…This means that they should not cause adverse effects at the implantation site or other tissues and organs. Biocompatibility is traditionally a characteristic of implantable materials intended to remain in the living body for a long time (Nasibova et al, 2023). From the development of the first generation of implantable materials between the 1940s and 1980s, it became clear that the least chemically active materials would exhibit the best biological performance (Smijs & Pavel, 2011).…”