METHOD OF STABILISING NANOPARTICLES OF BIOGENIC ELEMENTS WITH ENZYMES

摘要

FIELD: chemistry.SUBSTANCE: method involves synthesis of nanoparticles through a redox reaction while adding an enzyme for stabilising the formed nanoparticles directly into the reaction. The enzyme solution - chymotrypsin, concentration of which is selected from 0.02%, is mixed with a precursor solution of 0.013 M selenous acid or silver nitrate - 1%, 0.01%, 0.001%; the solutions are stirred and held at room temperature of 20°C or low temperature of 0°C for 30-60 minutes. A reducing agent - ascorbic acid or sodium borohydride - is then added to the reaction flask and the solutions are stirred and settled to complete the reaction.EFFECT: invention enables to obtain stabilised nanoparticles of biogenic elements in form of molecular solutions that are resistant to precipitation over time at different pH, with a controlled diameter and high output.1 tbl, 2 ex