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A mathematical model of the motion of colloidal particles in an aqueous medium is
created. It is shown that Brownian motion plays the dominant role in the movement of colloidal
particles with the diameter less than some critical value. The dependences of the critical diameter
TU#S-potentials for several particle compositions are calculated.
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1. Izaguirre J.A., Catarello D.P., Wozniak J.M., Skeel R.D. // J. Chem. Phys.
2001. Vol. 114. p. 2090-2098.
2. Visser J. // Adv. Colloid and Interface Sci. 1972. No. 3. p. 331-363.
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In the present work hydrophobic and hydrophilic nanoparticles of magnetite were
synthesized. The stability to aggregation and sedimentation of hydrophilic nanoparticles Fe3O4 in
aqueous solvent study was conducted. In the present work the inclusion of nanoparticles of
magnetite in the particles of poly (lactic-co-glycolic acid) and the distribution of magnetic
particles in the resulting hybrid particles were considered.
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