Drug carrier of porous solid material comprising cellulose nanofibers (CNF), wherein the porous solid material comprises closed cells

摘要

The present invention relates to a structure for the controlled release of at least one active substance, the structure comprising an active substance and a porous solid material comprising cellulose nanofibers (CNF). The structure has a density of less than 1000 kg / m3 and the porous solid material contains closed cells. The invention further relates to a method for preparing the structure, as well as the use of the structure.