Coagulation of Colloidal Solutions of Rod-Like Luminescent Nanoparticles nLaVO 4 : Eu 3+

G. V. Grygorova; V. K. Klochkov; O. O. Sedyh; Yu. V. Malyukin

Coagulation of Colloidal Solutions of Rod-Like Luminescent Nanoparticles nLaVO₄: Eu³⁺

G. V. Grygorova, V. K. Klochkov, O. O. Sedyh, Yu. V. Malyukin

Abstract

Colloidal properties of hydrosol based on europium doped lanthanum orthovanadate have been investigated. Nanoparticles of hydrosol stabilized by disodium salt of EDTA have rod–like shape with an average size of the particles of 8×80 nm. Thresholds for rapid coagulation of hydrosol with inorganic electrolytes and certain surfactants, dyes and aminoacids were determined. It has been shown that the colloidal solution behaves as a hydrophobic sol of particles with a negative charge. The data on the aggregative stability of hydrosol can be used to define conditions for performing biological experiments with nanoparticles.

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