Bactericidal Properties of Modular Protective Materials

Previously, the principle of constructing modular materials with specified properties was developed, according to which organometallic composites with nanoscale metal complexes introduced into them were applied to a unified fabric platform. The aim of the work was to study the properties of a unified fabric platform and to establish the possibility of giving protective bactericidal properties to fibrous materials (tissues). Such a platform has high stability and good bactericidal activity. It is shown in the article that the most significant indicators for tissue biocide were those reflecting the particle size of the dispersed phase, particle size distribution, the chemical composition of the dispersed phase, the qualitative and quantitative ratio of impurities in the dispersion medium, the concentration of particles of the dispersed phase in the dispersion medium, ζ-potential of particles of the dispersed phase; wettability of the fibers of the material by the main component of the dispersion medium (solvent), volatility of the main component of the dispersion medium (solvent). The bactericidal properties depended on the chosen method of fibrous material functionalization. Due to the principle of modular construction of materials with desired properties, it turned out to be possible to use organometallic composites with complexes of metal nanoparticles introduced into them. Studies of the biocidal activity of fibrous materials functionalized with metal nanoparticles in relation to different types of bacteria showed that it is possible to achieve characteristics comparable or even exceeding the known characteristics of antimicrobial drugs (benzetonium and benzalkonium chlorides) currently used in medical practice. As a unified fabric platform on which special modules are applied, it is proposed to use para–aramid protective fabric (Rusar fiber), as well as other types of fabrics - mixed aramid-viscose, aramid-cotton, aramid-polyacrylate, metaaramide (Nomex fiber). Approaches to giving materials (tissues) bactericidal protective properties are determined.

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