The Russian Fund of Basic Researches (RFBR) supported our joint with the Kurchatov's NBIC-center fundamental project "Investigation of Physical and Chemical Properties and Pharmacokinetics of Bioresorbable Polymers bearing Cells and Drugs". The project is devoted to complex studying of physical, chemical and pharmacological properties of polyelectrolytic microcapsules - perspective polymeric carriers of medicinals. For the first time it is planned to conduct lifetime research on dynamics and ways of a resorption of microcapsules, marked different fluorescent dyes, on groups of mice. The project is planned for 3 years.