Antibacterial Effect of Eco-Friendly Silver Nanoparticles and Traditional Techniques on Aged Heritage Textile, Investigated by Dark-Field Microscopy

An improper indoor microclimate has adverse effects on the state of preservation historical textiles arranged in them, favoring development bacteriological microflora. The current study aims to combine traditional and innovative methods for cleaning preserving a 100-year-old blouse from Bihor, Romania. material was impregnated with 30 70 ppm silver nanosuspensions washed substance obtained boiling natural wood ash (lye). research goals were determine antimicrobial action lye washing nanoparticles applied analyzed textile identify way which environmental factors (light) act upon conservation degree objects nanoparticles. All these procedures are eco-friendly do not cause any damage constituent fabrics. use hyperspectral imaging technique proved permeation both into textile, producing changes textile’s reflectance spectrum after being treated them. results showed anti-bactericidal/fungal properties lye. Microbiological analyses revealed that bacterial colonies reduced more than 95% cases. antibacterial effect maintained throughout duration study, under normal conditions, would remain active long period.