Zobrazeno 1 - 6
of 6
pro vyhledávání: '"T A Kikteva"'
Publikováno v:
Proceedings / Indian Academy of Sciences. 109:333-337
Stability of vitamin D3 on aerosil surfaces has been studied by UV- and IR-spectroscopy. The difference in the thermobehaviour of vitamin D3 in the adsorbed state at low and high surface coverages has been observed and discussed in terms of the compe
Publikováno v:
Journal of Colloid and Interface Science. 193:163-166
The sol-gel conversion in the tetraethoxysilane/alcohol/water system can be probed by means of the diffusion-controlled fluorescence quenching of Py* by Cu2+ ions. In the course of tetraethoxysilane hydrolysis, the viscosity of the system increases,
Publikováno v:
Theoretical and Experimental Chemistry. 33:157-160
The bimolecular photochemical quenching of the fluorescence of pyrene by N,N-dimethylaniline on the surface of various porous silicas with low coverage of the surface (less than a monolayer) has been studied. The kinetics of this process on porous an
Autor:
V. P. Kondilenko, I. G. Tarasov, N. P. Smirnova, T. A. Kikteva, O I Lyuksutova, Anna Eremenko, Ogenko Vladimir M
Publikováno v:
Proceedings / Indian Academy of Sciences. 107:779-788
The reactions of electron transfer between anthracene (An), pyrene (Py) and fluorescence quenchers N,N-dimethylaniline (DMA), N,N-diethylaniline (DEA) and Cu2+ ions in heterogeneous systems on the basis of silica under the conditions of differing mob
Autor:
N. P. Smirnova, V. P. Kondilenko, V.Ja. Chorny, T. A. Kikteva, Anna Eremenko, Ogenko Vladimir M
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 101:207-210
Using the sol-gel technique for the hydrolysis of tetraethoxysilane (TEOS), the synthesis of porous silicate films was carried out in the presence of additives comprising the non-ionic surfactant Triton X-100 (type I films), or the polymer poly(ethyl
Publikováno v:
Scopus-Elsevier
The sot-get-xerogel transition in the hydrolysis of tetraethoxysilane (TEOS) was studied following the phototransfer of an electron between Py* and cupric ions. The quenching efficiency of Py in the xerogels depends on the presence of a dopant (Trito
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