Main field of study: 011200 Physics
Area of specialization: 10 Molecular Optics
Program chief: D.Sc. V.V. Vojtylov
Department of molecular biophysics and physics of polymers 
Scientific adviser: D.Sc. V.V. Vojtylov
Reviewer: Ph.D. V. B. Rogozhin 

Study of aqueous dispersion systems of dextran coated magnetite nanoparticles
O.S. Vezo

This work is devoted to study of structure and stability of aqueous dispersed systems of dextran coated magnetite nanoparticles. 
Dependences of refractive index and adsorption coefficient of colloids on particle concentration were experimentally obtained. Pictures of nanoparticles and their aggregates were made by scanning electron microscope. Coefficients of light depolarization were determined by static light scattering method. Size distribution of magnetite nanoparticles coated by dextran was obtained by dynamics light scattering method.  Diffusion coefficient of translation motion and hydrodynamic radius of particles were determined by autocorrelation function analyzes. Diffusion coefficients of rotation motion were received by electro-optical method and analyzes of depolarization of light scattering. Measurements of particle sedimentation in magnetic field were used to study of colloid composition. 

The list of the publications
1.	A.G. Bazir, O.S. Vezo, B.P. Nikolaev, Ya.Yu. Marchenko, L.Yu. Yakovleva, V.I. Rolich, V.V. Vojtylov. NMR and Optical Properties of Dextran coated magnetic Nanosols// Nuclear Magnetic Resonance in Condensed Matter, Saint Petersburg, 2013, Р.66
2.	Vezo O.S., Optical and electro-optical study of aqueous suspensions of dextran coated magnetite nanoparticles// International scientific symposium of students, aspirant students and young scientists  "Youth and science: prospect Svobodnyi",  Siberian Federal University, 15-25 April, 2015, Krasnoyarsk (in Russian)