Fig. 1From: Effective usage of cationic derivatives of polyprenols as carriers of DNA vaccines against influenza virusStructure of trimethylpolyprenylammonium iodides (PTAI). PTAI with diverse length of polyprenoid chains were investigated, respectively n = 6-8 (mixture), n = 11, n = 15 and n = 10-14 (mixture)Back to article page