METHOD FOR PREPARING COMPOSITION CONTAINING COLLOIDAL NANOSILVER OR NANOGOLD (VERSIONS)

摘要

FIELD: medicine.;SUBSTANCE: method for preparing a composition containing colloidal nanosilver or nanogold involves incubation of probiotic bacteria specified in Lactobacillus fermentum species with an aqueous solution containing at least 4 mM of silver nitrate or auric chloride. The composition containing colloidal nanosilver is prepared by contact of said bacteria at 5-45°C and the aqueous solution containing mixed silver nitrate, ammonium and/or ammonia salt, as well as alkali metal hydroxide. The composition containing colloidal nanogold is prepared by contact of said bacteria at 5-45°C and the aqueous solution containing mixed auric chloride and alkali metal hydroxide.;EFFECT: prepared compositions are used as an antimicrobial agent or an algicidal agent.;17 cl, 4 dwg, 5 tbl, 16 ex