films

The sorption and bactericide properties of chitosan films with various humidity and preparation temperature were studied. Film chitosan samples have been found to possess high transport properties to water and hydrochloric acid vapors and to show bactericide activity. The temperature of film preparation practically does not influence the sorption properties. The swelling degree, sorption rate, and bactericide effect increase with the film’s humidity. Clinical tests of our film samples have shown their high efficiency at burn treatment.

The results of the study of the morphology and surface topography of chitosan films of the salt (S-) and basic (B-) chemical form by atomic force microscopy are presented. The films were cast from polymer solutions in acetic, lactic, citric and succinic acid. NaOH and triethanolamine were used for the salt > chitosan base reaction. Surface tomograms were obtained; the main morphological characteristics and roughness parameters of the film samples were estimated.