%0 Journal Article %T Creation of film coverings on a basis of chitosan the prolonged action %A Shurshina, A.S. %A Lazdin, R.Y. %A Bazunova, M.V. %A Zaikov, G.E. %K chitosan, modification, medicinal preparation, the state of polymer matrix, хитозан, модификация, лекарственное вещество, состояние полимерной матрицы %J Herald of Technological University %D 2025 %N 17 %P 2 %I Kazan National Research Technological University