Кл.слова (ненормированные):
Cytology -- Electrospinning -- Free radical reactions -- Reaction kinetics -- Spin dynamics -- Diffusion controlled -- Dipole dipole interactions -- Lipid peroxidation -- Magneto sensitives -- Singlet-triplet -- Time-dependent rate coefficients -- Two dimensional plane -- Two-dimensional surface -- Magnetic field effects
Аннотация: Magnetic Field Effects (MFEs) on the recombination of radicals, which diffuse on an infinite plane, are studied theoretically. The case of spin-selective diffusion-controlled recombination of Radical Pairs (RPs) starting from a random spin state is considered assuming uniform initial distribution of the radicals. In this situation, reaction kinetics is described by a time-dependent rate coefficient K(t), which tends to zero at long times. Strong MFEs on K(t) are predicted that originate from the ?g and hyperfine driven singlet-triplet mixing in the RP. The effects of spin relaxation on the magnetic field are studied, as well as the influence of the dipole-dipole interaction between the electron spins of the RP. In the two-dimensional case, this interaction is not averaged out by diffusion and it strongly affects the MFE. The results of this work are of importance for interpreting MFEs on lipid peroxidation, a magnetosensitive process occurring on two-dimensional surfaces of cell membranes. © 2020 Author(s).
Scopus
Держатели документа:
International Tomography Center, Siberian Branch, Russian Academy of Sciences, Institutskaya Str. 3a, Novosibirsk, 630090, Russian Federation
Novosibirsk State University, Pirogova Str. 1, Novosibirsk, 630090, Russian Federation
Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/44, Krasnoyarsk, 660036, Russian Federation
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Science, Leninskii Prospect 31, Moscow, 19991, Russian Federation
Доп.точки доступа:
Lukzen, N. N.; Ivanov, K. L.; Sadovsky, V. M.; Sagdeev, R. Z.