| Autor: |
Panova IG; Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia., Shevaleva EA; MIREA-Russian Technological University, 119571 Moscow, Russia., Gritskova IA; MIREA-Russian Technological University, 119571 Moscow, Russia., Loiko NG; Department of Microbiology, Federal Research Center 'Fundamentals of Biotechnology' RAS, 119071 Moscow, Russia., Nikolaev YA; Department of Microbiology, Federal Research Center 'Fundamentals of Biotechnology' RAS, 119071 Moscow, Russia., Novoskoltseva OA; Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia., Yaroslavov AA; Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia. |
| Abstrakt: |
A linear polycation, poly(diallyldimethylammonium chloride), electrostatically interacts with anionic latex particles from a carboxylated butadiene-styrene copolymer in aqueous solution thus forming an interpolyelectrolyte complex. A mutual neutralization of oppositely charged latex and polycation groups occurs at W = latex/polycation = 50 w/w ratio. At W = 27, an ultimate polycation adsorption is reached, resulting in the formation of positive polycomplex particles, while at W ˂ 27, two-component systems are formed composed of positive polycomplex particles and free polycation. A film created from the W = 12 formulation shows a high toxicity to Gram-positive and Gram-negative bacteria and yeast. Repeated washing the film leads to partial removal of polycation and a 50% decrease in the activity of the film only towards Gram-negative Pseudomonas aeruginosa . The results indicate the potential for use of the mixed polymer formulations for the fabrication of antimicrobial films and coatings. |
