Film materials with controlled release of biologically active substances

The properties of spun composites containing polyvinyl alcohol, a proteolytic enzyme (protease C or Terrilytin) and the high-molecular-weight antimicrobial polyhexamethyleneguanidine hydrochloride were investigated. The effect of the composition of the spinning compositions and spinning temperature on the properties of the film materials — the activity, stability, and rate of release of biologically active substances — was investigated. The possibility of obtaining polyvinyl alcohol films with controlled release of biologically active substances was demonstrated. Translated from Khimicheskie Volokna, pp. 44–48, September–October, 1998.