Depositing silver nanoparticles on/in a glass slide by the sonochemical method

Abstract

A glass substrate was coated with silver by ultrasound irradiation. The structure and morphology of the nanoparticles in the deposited film were characterized using methods such as XRD, TEM, HR TEM, HRSEM, AFM, TOF-SIMS and optical spectroscopy. It was demonstrated that nucleation and the ensuing growth of the nanoparticles occurs in solution and is influenced by the concentration of the precursor, temperature and time of sonication. TOF-SIMS measurements revealed that silver nanoparticles passed through the glass interface and diffused within the glass substrate up to ∼60 nm. An analysis of the thermal effects accompanying the sonochemical cavitation of micro-bubbles in the solution near the solid surfaces shows that the collision of nanoparticles can lead to their melting and coalescence. Sonochemical deposition takes place layer by layer, so that the completion of the deposition of each layer of nanoparticles is followed by the sintering of adjacent particles and the formation of a close-packed layer. Using PVP as a stabilizing agent, a monolayer coating of silver nanoparticles on the glass surface was obtained. The coated glass demonstrated antibacterial activity.

Two are Better than One: Combining ZnO and MgF2 Nanoparticles Reduces Streptococcus pneumoniae and Staphylococcus aureus Biofilm Formation on Cochlear Implants

“…Using this approach, very small seed particles are deposited on the surface, which can continue to grow as previously observed in the deposition of silver NPs. [ 26 ] Indeed, the highest percentage of both components (0.3 wt%) and the most uniform distribution of NPs on the CI surface were achieved when the ZnO NPs were coated using the in situ sonication procedure, and the previously synthesized Table 1 (magnifi cation: 10 000×).…”

Biofouling suppression of modified feed spacers: Localized and long-distance antibacterial activity

“…Modification of the spacers was performed by sonochemical deposition as described by Perkas et al [21] and Ronen et al [14]. Briefly, cleaned spacers were immersed in 0.04 M silver nitrate solution in 10% ethylene glycol-90% deionized water (DI) water [v/v].…”

Noble Metal Nanoparticles and Their (Bio) Conjugates. I. Preparation

“…8, No. 1;2016 atoms via aqueous sonolysis led to different noble metal nanoparticles in aqueous or alcohol solutions (Guo et al, 2008;Okitsu et al, 2005;Perkas et al, 2008). Sonochemical irradiation of silver salts in aqueous solutions alone leads to the formation of instable particles.…”