Optical properties of silver, silver sulfide and silver selenide nanoparticles and antibacterial applications
- Departamento de Investigación en Física, Universidad de Sonora, Apdo. Postal 5-88, 83190, Hermosillo, Sonora (Mexico)
Highlights: • Ag small nanoparticles synthesis in zeolite A4. • SERS effect in Ag small nanoparticles. • Bactericidal properties in Ag{sub 2}Se and Ag{sub 2}S semiconductor nanoparticles. - Abstract: This work presents the optical properties and antibacterial activity of silver nanoparticles (AgNPs) and their semiconductors from S and Se (Ag{sub 2}S and Ag{sub 2}Se nanoparticles). The nanoparticles were synthesized and stabilized in the matrix of the synthetic zeolite A4. Both compounds Ag{sub 2}S and Ag{sub 2}Se nanoparticles show a size of around 9 nm and quasi-spherical morphology. The interplanar distances calculated in the TEM images confirm the presence of metallic and semiconductor nanoparticles with hexagonal, monoclinic and orthorhombic structures for nanoparticles Ag, Ag{sub 2}S and Ag{sub 2}Se, respectively. The Surface plasmon resonance for AgNPs was obtained around 415 nm. Furthermore, in nanoparticles Ag{sub 2}S and Ag{sub 2}Se we identified absorptions bands in the visible region with maxima around 330 and 375 nm. The presence of SERS effect caused by metallic nanoparticles on the surface of the zeolite was observed. The antibacterial activity of the nanoparticles stabilized in the zeolite was analyzed against gram-negative bacteria and gram-positive bacteria.
- OSTI ID:
- 22805447
- Journal Information:
- Materials Research Bulletin, Vol. 99; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
Similar Records
Preparation of silver-chitosan nanocomposites and coating on bandage for antibacterial wound dressing application
Physicochemical and antibacterial characterization of ionocity Ag/Cu powder nanoparticles