Novel process for coating textile materials with silver to prepare antimicrobial fabrics

Abstract

The technology of applying a silver coating on fabric is presented. Tissue is wetted with a solution of copper sulphate, which is then reduced to metal-phosphide by phosphine treatment. Wetting can be carried out by immersing the fabric in a copper sulphate solution or spraying the solution onto the fabric using a sprayer. The subsequent processing step is the immersion of the fabric in a solution of silver nitrate, during this copper phosphide is transformed to a silver coating. The developed technology allows achieving a good grip of the fabric with a continuous silver films with a thickness from 40 to 600 nm. Using copper sulphate spray, coatings consisting of individual dots or clusters of silver were obtained. The silver coated tissues exhibited antimicrobial activity even after 10 washing.

Antimicrobial activity of bone cements embedded with organic nanoparticles

“…1,2 For many medical procedures to remain viable treatments, novel therapeutic approaches to infections need developing in order to guarantee sufficient protection against pathogens. The use of metals, predominantly silver, in the form of salts or nanoparticles is a well-established antimicrobial strategy that found applications in creams, 3 wound wrappings, 4 fabrics, 5 and eluting surfaces. [6][7][8] However, concerns regarding the use of silver are growing, particularly its long-term safety linked to accumulation in the environment and the body, 9,10 hence other antimicrobial agents are in urgent need.…”

Biogenic synthesis of antimicrobial silver nanoparticles capped with l-cysteine

“…The increasing detection of bacterial strains capable of resisting one or more antibiotic has driven the research in the development and application of nanomaterials to inactivate pathogens [9]; this is in virtue of the inability of such agents to induce resistance in bacteria and the constantly decreasing efficacy of common antibiotics. Silver nanoparticles antimicrobial properties have found application in bone cement [10], wound dressing [11] catheters [12,13] and fabrics [14].…”

A low-temperature gold coating of the dielectric surfaces employing phosphine gas as a reducing agent

“…Thus the dried product was placed in a sealed chamber and fed to gaseous phosphine until its absorption termination. Our techniques for producing phosphine and its use to produce surface films, as well as the determination of film thickness did not differ from those given in [27,28].…”

“…The camera was connected to a vessel with phosphine gas. The [27,30] equalizing vessels was filled with water, through which the vacuum created in the chamber, creating a flow of phosphine into the chamber.…”

“…The basis of our proposed method is to use a gaseous phosphine as a reducing agent. Earlier we employed this reducing agent for coating technologies on metal and dielectric materials such as copper-phosphorous and silver films [25][26][27][28].…”