The Colloid Journal is the only journal in Russia that publishes research findings in the field of chemical sciences, focusing on the dispersion states of substances and surface phenomena in dispersion systems. This journal covers both experimental and theoretical studies on various colloids and surface phenomena, including the structure and properties of interfaces, adsorption phenomena of surfactants and the structure of adsorption layers, capillary phenomena, wetting films, wetting and spreading, and cleaning power. The journal also discusses the formation of colloidal systems, their molecular dynamics and optical properties, surface forces, interactions between colloidal particles, stability, and criteria for the loss of stability in different dispersion systems (such as sols, aerosols, suspensions, emulsions, foams, and micellar systems). Additionally, the Colloid Journal includes topics on electrophoresis and diffusion, electro-osmosis and thermal osmosis phenomena, as well as capillary and reverse osmosis phenomena, particularly addressing the phenomena involving molecular and ionic diffusion layers present near interfaces.