macroinitiators. The ability of the dendriticcopolymers to serve as a nanocontainer for a rutheniumcomplex Ru(NH3)3Cl3 with anticancer properties was studied. The possibility of improving the water solubility of this poorly soluble drug by loading it onto dendriticcopolymers was investigated. The hydroxyl groups of the dendriticcopolymers were used for complexation of the ruthenium compound to the shell. The