مقاله خواص ضد میکروبی جوراب هایی که از نانوذرات نقره محافظت می شوند

 

نام مقاله: خواص ضد میکروبی جوراب هایی که از نانوذرات نقره محافظت می شوند

نام مقاله به انگلیسی: Antimicrobial Properties of Socks Protected with Silver Nanoparticles

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Abstract Antimicrobial properties of socks containing silver nanoparticles were investigated. Two types of socks were used for testing. The first were linen (100%) socks impregnated with a specimen containing silver nanoparticles. The second type were commercially available cotton (55%) socks containing nanosilver. An antimicrobial effect was assayed against selected Gram-positive and Gram-negative bacteria as well as yeasts. It was found that the specimen used for impregnating linen socks has a wide range of antimicrobial activity against some Gram-positive, Gram-negative bacteria and yeasts – Candida albicans. Antimicrobial effectiveness depended on the type of microorganism, cell number and concentration of silver nanoparticles. Commercially available cotton socks presented antibacterial properties against Staphylococcus epidermidis. Key words: silver

 Introduction In the past few decades, researchers have taken an interest in the development of textile fabrics containing antibacterial agents [1]. Different types of substances are used in the textile industry, for example oxidising agents, coagulants, and metallic or quaternary ammonium compounds [2]. Many of them are possibly harmful or toxic, while nanosilver is considered as relatively safe [3].
Silver nanoparticles have some unique chemical and physical properties such as a high surface area, small size (< 20 nm) and high dispersion, which make them an effective antimicrobial agent [4 – 7]. Moreover, it is believed that silver has a wide spectrum of activity including bacteria, fungi and viruses [8]. Silver nanoparticles can be used in different forms, for example as a colloid solution or they can be incorporated into some materials [9]. That is why they are commonly used in a variety of products from medical devices to clothes and textiles [3, 10].
The exact mechanism of antimicrobial activity is not fully explained and is an expanding field of research [8]. It is suggested that the mechanism of antibacterial effects involves the absorption and accumulation of silver nanoparticles by cells causing structural changes in the cell membrane and dissipation of the proton motive force. They also interact with the S-H bounds, blocking and denaturing proteins [11]. nanoparticles, antibacterial, cotton socks, linen socks, textiles.