Comparative study of the Antibacterial Properties of Modified Textile Materials with Different Metal Nanoparticles

A number of metal particles have proven antibacterial properties. In this study, a comparative analysis was made of two types of metal particles: zinc oxide and titanium oxide nanoparticles respectively, which were deposited on cellulose material and were fixed by means of a cross -linked gelatin hydrogel. Three methods were applied under different reaction conditions for obtaining the biocomposite materials. The biomaterials were investigated by means of scanning electron microscopy, transmittance spectral analysis, antibacterial analysis, air permeability. A different morphological structure was observed in the different samples. The titanium oxide nanoparticles were covered by gelatin film and were dispersed into smaller structures. Zinc oxide nanoparticles from a spherical shape have transitioned into newly formed crystal structures with needle -like ends. The modified cotton samples were tested against Gram-positive and Gram-negative bacteria. Biocomposite materials with TiO 2 -NPs exhibited better antibacterial activity towards Bacillus cereus and Pseudomonas aeruginosa than materials containing ZnO-NPs. Therefore, such materials containing these two types of metal particles can find application in medical practice.