Comparative analysis of the surface and antibacterial properties of cotton materials modified with silver and copper nanoparticles

The work is devoted to the problem of fiber modification by silver nanoparticles (AgNPs) and copper (CuNPs). As part of the ongoing study, the modification of cotton fabric was carried out by impregnation with a controlled precipitation reaction, hydrazine was used as a reducing reagent. The remains of this reducing agent were completely washed off the material with distilled water. The introduction of silver and copper nanoparticles onto the surface of the material leads to a change in their biological activity. The results of the surface study using the ImageJ application show that in the resulting modified materials, such as XM/AgNPs and XM/SuNPs, nanoparticles are fixed on the surface of the material. The highest value of the coefficient of bactericidal activity is observed for a material of the XM/AgNPs type, which is expected, while it is important to take into account the lower cost of the initial reagents in the case of materials modified with copper nanoparticles.