Kucherenko M.G., Izmodenova S.V., Chmereva T.M., Kruchinin N.Yu., Podresova N.S.
DIFFUSION CONTROLLED REACTION KINETICS IN NEAR-SURFACE SHELL OF FULLERENE-TUBULENE NANOPARTICLE WITH ADSORBED MACROMOLECULAR CHAIN ^{[№ 9 ' 2013]}
A mathematical model of the electronic excitation cross-annihilation kinetics of oxygen molecules and organic dyes, connected with macromolecule linkers adsorbed on a fullerene or carbon nanotube (tubulene) surface in a solution is proposed. The model taken into account a non-homogeneous character of the radial distribution of polymeric chain linkers forming like profile of oxygen singlet excitations generation centers and furthermore diffusion relaxation features of its density in the near-surface zone of the different curvature radius. Expressions are produced for the time — dependent signal of annihilation delayed fluorescence of dye molecules and they are different for the spherical and tubular nanoparticle. The oxygen molecules thermal diffusion which obtained by the formation of a non-homogeneous temperature field in the near-surface layer was taken into account. The estimation of the thermal diffusion effect value is made and its influence on the long-time luminescence kinetics of dye molecules connected with polymeric chains adsorbed on fullerene/tubulene kernels is obtained.

Kucherenko M.G., Izmodenova S.V., Chmereva T.M.
"KINETIC LENS" EFFECT IN INTERMOLECULAR ENERGY TRANSFER NEAR METALLIC NANOPARTICLE WITH MACROMOLECULAR LINKER ^{[№ 1 ' 2013]}
A mathematical model of the electronic excitation radiationless energy transfer kinetics (Forster Resonace Energy Transfer — FRET) between molecules, connected with the spherical metal nanoparticle by means macromolecular linkers is proposed. It is shown that in such systems like the cluster type a complex energy transfer kinetic regime is formed as a result of the rate variation of the local plasmon-initiated inductive — resonant transition for the donor-acceptor pairs which generate various geometrical configurations of molecules with nanoglobule. Observed picture of the population dynamics of reagents excited states resembles a result of the construction of the optical image of some object by means of a collecting (or scattering) lens.

Kucherenko M.G., Dycembaev R.N., Izmodenova S.V.
MAGNETIC FIELD EFFECT ON ANNIHILATION OF TRIPLET ELECTRONIC EXCITATION, MIGRATING IN SPHERIC NANOPORES. VOLUME AND SURFACE WANDERING ^{[№ 9 ' 2009]}
The article studies the effect of external magnetic field on annihilation of triplet electronic excitation of organic molecules (anthracene, erythrosin), introduced into porous matrixes of silochrome. They have discovered the effect of monotone decrease of intensity of annihilation slowed fluorescence after changing induction of the field from 0 to 1 tesla. They offer a mathematic model of magnetosensitive process of annihilation inside of nanopores, taking into account specific features of wandering of reagents in small cavities of solid sorbents. They also detect essential distinctions in system response to external field effect depending on geometrical limitations of migration regime of annihilating particles.