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O. M. TSENDRA and V. V. LOBANOV
«Disaccharides as Sorption Mediators of n-Acetylneura¬minic Acid on Silica Nanoparticles Surface»
411–415 (2008)

PACS numbers: 34.20.Gj, 61.46.+w, 68.43.Bc, 68.43.Fg, 71.15.Ap, 82.65.+r, 87.15.Aa

The equilibrium spatial structures and the values of formation energies for some complexes of N-acetylneuraminic acid on silica surface are calculated using the quantum-chemical SCF MO LCAO method within the scope of the РМ3 valence approximation. The adsorption complexes are formed both by direct contact and with participation of disaccharides (i.e. saccharose (Sacch) and lactose (Lac)). In both cases, hydrogen bonds are formed between the silica surface and the absorbed molecules. Lateral interactions are also revealed in the adsorption layer. The role of the silica surface as a restructuring agent is shown.