Description

This invention relates to a dextran-coated silica aerogel (S) used as a drug delivery system in the treatment of colon cancer, and a method for producing the dextran-coated silica aerogel (S) in which the silica aerogels (S) synthesized by the sol-gel method are modified with amine groups and coated with dextran (D) or dextran aldehyde (DA).