Biological activities of chitosan and prepared chitosan-tripolyphosphate nanoparticles using ionic gelation method against various pathogenic bacteria and fungi strains

Chitosan is a cationic natural polymer which has been widely used in various areas. Present study focused on the preparation of the chitosan nanoparticles (NPs) throughout ionic gelation method and using tripolyphosphate (TPP), as non-toxic polyanion counter-ions. Chitosan NPs solutions were prepared by mixing of the 10 mL chitosan solutions, with different concentrations (1, 2 and 3 mg/mL), and different amounts of the TPP (4, 6, 8, 10, 12,...