A Review on Antimicrobial Silver Absorbent Wound Dressings Applied to Exuding Wounds

Abstract

Exuding often occurs in the inflammatory stage both for acute wounds and chronic wounds. Absorbent wound dressings are specially developed and used in exuding wounds. In order to reduce bacteria and risk of infection, many absorbent dressings are impregnated with silver ions or particles which are the most widely used substance to obtain antimicrobial effects and therefore this review focuses on the antimicrobial absorbent dressings treated with silver ions or silver particles. The methods of dispersing silver in dressings include coating or spraying silver-containing solution on the wound dressing surface, padding the wetted dressing with pressure, embedding silver nanoparticles in non-woven fibers. When silver dressings absorb exudate from wounds, the antimicrobial silver will be activated and then breaks down the bacterial cell wall to kill the bacterium. Silver foam dressings and silver alginate dressings are the most popular antimicrobial absorbent dressings, which have been developed and produced by many health care companies.

Single-cell protein production by Pleurotus ostreatus in submerged fermentation

“…In other studies, paper and pulp industry wastes have been used as lignin media for P. ostreatus and other white-rot fungi for the production of hydrolytic and oxidative enzymes. 52,53 In addition, cultivation of the P. ostreatus mushroom on a solid substrate made of cellulose fibre rejects has been conducted. 54 To our knowledge, there is no scientific literature on fungal protein production using pulp and paper wastes.…”

Green synthesis of silver nanoparticles: methods, biological applications, delivery and toxicity

“…Therefore, many absorbent dressings are impregnated with silver ions or particles, the most popular substance to obtain antimicrobial effects and to reduce bacteria and the risk of infection. 125 Mariam et al investigated the combined effect of mint and AgNP hydrogel films as wound-healing agents in diabetic rats. They discovered that it significantly increased the rate at which the wounds healed.…”

Biochemical transformations of inorganic nanomedicines in buffers, cell cultures and organisms

“…H 2 S into Ag 2 S is widely known and has been described for different systems were sulfur-bearing species are prevalent, significantly impacting behavior and fate of the material in the different systems. [117][118][119][120] In biomedical applications, silver nanoparticles (AgNPs) are studied for their antimicrobial properties, 121 advanced wound healing properties, 122,123 implant coating properties, 124 and applicability in drug delivery systems. 125 In in vitro lymphocyte experiments, Ag either stayed intact as metallic silver or was transformed into Ag 2 S in a corrosion reaction or complexed as Ag-cystein.…”