New Methodology for the Antifungal Testing of Surfactant-Free Silver Metal Nanoparticles for Applications in Green Housing

Abstract

This work presents a method that enables the cheap production of surfactant-free stable metal nanoparticles in air. The silver nanoparticles are good candidates for new applications in green housing. Recently, we demonstrated usage of air-stable silver MNPs as biocidal coatings instead of chemical agents for protection of straw bales used in a green housing construction. Application of the silver nanoparticles as antifungal agents needs a method that does not neutralize their biocidal properties as a result of the testing method. In this study, we discuss the usual methods that are used for the antibacterial property testing and the development of a method that allows demonstrating the antifungal properties of metal nanoparticles.

Instant green synthesis of silver-based herbo-metallic colloidal nanosuspension in Terminalia bellirica fruit aqueous extract for catalytic and antibacterial applications

“…Silver nanoparticles have found remarkable applications in the field of drug delivery, food industries, agriculture, textile industries, water treatment, redox catalysis, green housing construction and medicine (Jagtap and Bapat 2013; Kuunal et al 2016). Several approaches exist for the synthesis of silver nanoparticles (AgNPs) including; thermal decomposition, sonochemical, electrochemical and photochemical reactions, chemical reduction and biological route (Ahmad et al 2010).…”

Redox reactivity at silver microparticle—glassy carbon contacts under a coating of polymer of intrinsic microporosity (PIM)

“…Initial experiments were performed with 2 μg silver microparticles (previously synthesised for application as antimicrobial agent [20,21], see Fig. 2) drop-cast deposited onto a glassy carbon electrode surface and immersed in aqueous 0.1 M phosphate buffer pH 12.…”

“…Silver microparticles synthesis The synthesis of Ag microparticles is based on the non-hydrolytic sol-gel method [18,19] that has been recently applied for the synthesis of Ag antimicrobial coatings [20,21]. Briefly, 642 mg of silver acetate (99%, Aldrich) along with 20 cm 3 of benzylamine (99%, Aldrich) were used for the synthesis of the particles.…”