Coating silver nanoparticles on poly(methyl methacrylate) chips and spheres via ultrasound irradiation

Abstract

Ultrasound irradiation is used for anchoring silver nanoparticles with an average size of 51 nm onto the surface of poly(methyl methacrylate) PMMA chips (2 mm diameter), and silver nanoparticles with an average size of 20 nm onto the surface of the PMMA spheres (1-10 mm). The sonochemical reduction was carried out under argon atmosphere at room temperature. The silver nanoparticles were obtained by the irradiation of a mixture containing the PMMA, silver nitrate, ethylene glycol, ethanol, water, and 24% (wt) aqueous ammonia for 2 h, yielding a PMMAnanosilver composite. By controlling the atmosphere and reaction conditions, we could achieve the deposition of silver nanoparticles onto the surface of poly(methyl methacrylate). The silver-deposited PMMA chips (loaded with 0.01-1.0 weight percent silver) were successfully homogenized in melt by extrusion and then injection molded into small, discshaped samples. These samples were analyzed with respect to their directional spectral optical properties in UV, VIS, and IR spectroscopy.

Silver nanoparticle deposition on hydrophilic multilayer film surface and its effect on antimicrobial activity

“…30 The present work deals with the study of the ion release capability of silver nanoparticles deposited, either sprayed or ultrasonically sputtered, on the external PA6 surface of a multilayer film structure, previously treated with itaconic or maleic anhydride for promoting the silver nanoparticles adhesion/ immobilization.…”

Modification of Parylene film-coated glass with TiO2 nanoparticles and its photocatalytic properties

“…If ultrasound irradiation is applied in the presence of polymer support, the microjets, with high speed and temperature, pushed the just-formed NPs to the surface, leading to the local melting or softening of the polymer. No chemical interaction between metal oxide and polymer takes place in this collision [14,18,27]. Thus, the heat exchange between the polymer surface and the NPs leads to an increase in the local temperature to the crystallization point of an inorganic phase.…”

“…Among these reports, the uniform deposition of silver and zinc oxide nanoparticles on glass and polymer surfaces was demonstrated [13][14][15][16]. The physical phenomenon responsible for the sonochemical process is acoustic cavitation, i.e., the formation, growth and explosive collapse of the bubbles.…”

Synthesis, Characterization and Applications of ZnO/TiO2/SiO2 Zinc (tris) Thiourea Sulfate Nanocomposite

“…Sonochemical irradiation has been proven as an effective technique for the synthesis 17 , as well as for the deposition and insertion of nanoparticle on/into fabrics [18][19][20] . The deposition of nanoparticles on fabrics involves the formation of microjets from auditory bubble, which push the nanoparticle onto the surface of the fabric at a high speed causes 21 .…”