Interaction of Se{sup 0} nanoparticles stabilized by poly(vinylpyrrolidone) with gel films of cellulose Acetobacter xylinum

Journal Article · Sat Jul 15 04:00:00 EDT 2006 · Crystallography Reports

DOI:https://doi.org/10.1134/S1063774506040134· OSTI ID:21091460

Baklagina, Yu G; Khripunov, A K ^[1]; Tkachenko, A A ^[2]; Suvorova, E I; Borovikova, L N; Smyslov, R Yu ^[1]; Nilova, V K ^[3]; Nazarkina, Ya I; Lavrent'ev, V K; Valueva, S V; Kipper, A I; Kopeikin, V V ^[1]

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1. Russian Academy of Sciences, Institute of Macromolecular Compounds (Russian Federation)
2. St. Petersburg State University (Russian Federation)
3. Russian Academy of Sciences, Institute of Cytology (Russian Federation)

The sorption and desorption of poly(vinylpyrrolidone)-Se{sup 0} (PVP-Se{sup 0}) nanoparticles on gel films of cellulose Acetobacter xylinum (CAX) are investigated. It is revealed that the hydrodynamic radius R{sub h} of PVP-Se{sup 0} 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-Se{sup 0} 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)-Se{sup 0} nanoclusters differ in the number and size upon their sorption inside the cellulose gel film and on the film surface.

• OSTI ID: 21091460
• Journal Information: Crystallography Reports, Journal Name: Crystallography Reports Journal Issue: 4 Vol. 51; ISSN 1063-7745; ISSN CYSTE3
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CELLULOSE
DESORPTION
FILMS
GELS
INTERACTIONS
NANOSTRUCTURES
PVP
SELENIUM
SURFACES