Abstract
The sorption and desorption of poly(vinylpyrrolidone)-Se0 (PVP-Se0) nanoparticles on gel films of cellulose Acetobacter xylinum (CAX) are investigated. It is revealed that the hydrodynamic radius R h of PVP-Se0 nanoparticles decreases from 57 nm in the initial solution (without CAX gel films) to 25 nm after the sorption of nanostructures on gel films and then increases to approximately 100 nm after the desorption of nanoparticles with water from dry samples of the CAX gel film-PVP-Se0 nanocomposite. It is found that selenium atoms do not penetrate into crystallites of the cellulose nanofibrils and replace water molecules sorbed by the primary hydroxyl groups of their walls. Poly(vinylpyrrolidone)-Se0 nanoclusters differ in the number and size upon their sorption inside the cellulose gel film and on the film surface.
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Original Russian Text © Yu.G. Baklagina, A.K. Khripunov, A.A. Tkachenko, E.I. Suvorova, V.V. Klechkovskaya, L.N. Borovikova, R.Yu. Smyslov, V.K. Nilova, Ya.I. Nazarkina, V.K. Lavrent’ev, S.V. Valueva, A.I. Kipper, V.V. Kopeĭkin, 2006, published in Kristallografiya, 2006, Vol. 51, No. 4, pp. 659–666.
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Baklagina, Y.G., Khripunov, A.K., Tkachenko, A.A. et al. Interaction of Se0 nanoparticles stabilized by poly(vinylpyrrolidone) with gel films of cellulose Acetobacter xylinum . Crystallogr. Rep. 51, 619–626 (2006). https://doi.org/10.1134/S1063774506040134
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DOI: https://doi.org/10.1134/S1063774506040134