Optical technologies in biophysics and medicine

Interaction of silicon nanoparticles with the molecules of bovine serum albumin in aqueous solutions

X. A. Anenkova, I. A. Sergeeva, G. P. Petrova, X. V. Fedorova, L. A. Osminkina, V. Yu. Timoshenko

Lomonosov Moscow State University, Faculty of Physics

Abstract: Using the method of photon-correlation spectroscopy, the coefficient of translational diffusion D_t and the hydrodynamic radius R of the particles in aqueous solutions of the bovine serum albumin, containing silicon nanoparticles, are determined. The character of the dependence of these parameters on the concentration of the protein indicates the absence of interaction between the studied particles in the chosen range of albumin concentrations 0.2 — 1.0 mg mL^-1.

PACS: 87.64.Cc, 87.64.K-, 87.85.Rs

Received: 04.04.2011

 English version: Quantum Electronics, 2011, 41:5, 393–395

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