Characterization of antibacterial silver coated yarns

Abstract

Surface treatments of textile fibers and fabrics significantly increase their performances for specific biomedical applications. Nowadays, silver is the most used antibacterial agent with a number of advantages. Among them, it is worth to note the high degree of biocompatibility, an excellent resistance to sterilization conditions, antibacterial properties with respect to different bacteria associated with a long-term of antibacterial efficiency. However, there are only a few antibacterial fibres available, mainly synthetic with high production cost and limited effectiveness. Cotton yarns with antimicrobial properties are most suitable for wound healing applications and other medical treatments thanks to their excellent moisture absorbance while synthetic based fibres are most suitable for industrial applications such as automotive tapestry and air filters. The silver-coated fibers were developed applying an innovative and low cost silver deposition technique for natural and synthetic fibers or yarns. The structure and morphology of the silver nanoclusters on the fibers was observed by scanning electron microscopy (SEM), atomic force microscopy analysis (AFM) and XRD analysis, and quantitatively confirmed by thermogravimetric analysis (TGA) measurements. Good silver coating stability has been confirmed performing several industrial washing. Antimicrobial tests with Escherichia coli were performed.

Combining in the melt physical and biological properties of poly(caprolactone) and chlorhexidine to obtain antimicrobial surgical monofilaments

“…One approach is to provide the polymer with antimicrobial properties in an "offline" preparation process. In this case, the thread is superficially coated using a specific antimicrobial component previously dissolved in a solvent (Blaker et al 2004;Dubas et al 2011;Harnet et al 2009;Gupta et al 2007Gupta et al , 2008Pollini et al 2009;Saxena et al 2011;Zurita et al 2006). Another approach is to add the biocide agent in the polymers "online", i.e.…”

Synthesis, Characterization and Applications of Nanochitosan/Sodium Alginate/Microcrystalline Cellulose Film

“…According to the standard antibacterial test "SNV 195920-1992", specimens showing more than 1 mm microbial zone inhibition can be considered as good antibacterial agents [69]. In the present study since the NCS/SA/MC film prepared in all ratios shows the inhibitory zone greater than 1 mm it was concluded that NCS/SA/MC film prepared in 4:16:1 ratio acts as good antibacterial agent and effective in killing the microbes.…”

Nanomaterials in dentistry – potential capabilities, applications, limitations and hazards. Review of the literature. Part 2

“…Powdered titanium dioxide is also commonly used as a whitener in toothpastes [15]. Moreover, nanoparticles can be used successfully in other materials, including hydrogels [14,15,16]. Chladek et al presented a method for incorporating NAg into chemically cured silicone soft-liner materials.…”