Ion irradiation influence on living systems by dielectric matrices

This work studies passing of an helium ion beam with an energy of 1.5-2 MeV. It is shown that even a slight deviation of the membrane from the normal (1.5 ... 3 degrees) leads to a decrease in the yield of backscattered ions from the target HfO2 and, consequently, to a decrease in the measured current. Thus, the created and studied template membranes ensure the channeling functions of the high-energy ion flux. It is established that the coefficient of passing accelerated ions through the membrane can exceed 60%. It has been shown that it is possible to apply por − Al2O3 membranes as a medium for growth and reproduction of living organisms, in particular bacterial colonies. A solution based on fluorescein was chosen to perform a primary visual study of membrane properties, without extra diagnostic methods. The calculation of the capillary flow was carried out according to the Poiseuille law. As a result, it was determined that for membranes with a small (≈ 20nm) and large (≈ 200nm) pore diameter obtained in the electrolyte based on sulfuric and orthophosphoric acids, the liquid flow through the membrane is Q1 = 0, 0023 and Q2 = 0.03 mm3/s, respectively. It has been proposed to use the technique of focused high-energy ion beams that allows a local effect on under study biological micro-objects, and it has been revealed that membranes are a good platform for their life and growth.