Background: Nanomaterials for medical applications, preparations with silver and copper
nanoparticles attract special attention. Silver has stronger antimicrobial properties than does penicillin,
biomycin and a number of other antibiotics. Nanoparticles of copper and copper oxide also exert a
pronounced antibacterial effect.
Objective: Further development and creation of medicines based on silver and copper nanoparticles
require selecting a method for synthesis of nanoparticles that would ensure production of various nanomaterial
Method: The method of electron beam evaporation and deposition of materials in vacuum opens up
wide possibilities. The idea of using this approach is the possibility of simultaneous evaporation and
deposition of mixed molecular flows of two substances onto a substrate.
Results: The paper presents the results of investigation of the structure of porous condensates of Ag-NaCl
and Cu-NaCl composition; chemical and phase compositions and dimensions of nanoparticles, produced
from the vapour phase by EBPVD method. Silver and copper nanoparticles in a porous matrix have considerable
sorption capacity relative to oxygen and moisture. Along to concentration change, phase composition
of nanoparticles can be also controlled by heat treatment of the initial condensate produced at low condensation
temperatures. Silver and copper nanoparticles can be converted into stable colloidal systems.
Conclusion: Physical synthesis of silver and copper nanoparticles by EBPVD method allowed producing
nanostructured material in the form of a dry substance for preparation of the required colloidal
solutions. TGA method provides an indication of the processes of transformation in Ag-O system.
Ag2O decomposes at the temperature of 460°C. Controlling the activity (size) of nanoparticles allows
creating various compositions of nanomaterials, based on copper.