The present invention relates to a nanofilm including at least one polycation and one polysulfated oligosaccharide. The present invention also relates to the nanofilms obtainable by simultaneously or alternately sputtering at least one polycation solution and at least one polysulfated oligosaccharide solution and to the use of said nanofilms on skin, skin conditions, wounds, or mucous membranes. The present invention also relates to a nanofilm for the use thereof in a method for releasing polysulfated oligosaccharide upon contact with exuding wounds.
