| Autor: |
Andrés, Paula Fabiana dos Santos Pereira, Camila Cristina De Foggi, Amanda Fernandes Gouveia, Ivo Mateus Pinatti, Luís Antônio Cabral, Eva Guillamon, Iván Sorribes, Miguel A. San-Miguel, Carlos Eduardo Vergani, Alexandre Zirpoli Simões, Edison Z. da Silva, Laécio Santos Cavalcante, Rosa Llusar, Elson Longo, Juan |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
International Journal of Molecular Sciences; Volume 23; Issue 18; Pages: 10589 |
| ISSN: |
1422-0067 |
| DOI: |
10.3390/ijms231810589 |
| Popis: |
In this work, α-Ag2−2xCuxWO4 (0 ≤ x ≤ 0.16) solid solutions with enhanced antibacterial (against methicillin-resistant Staphylococcus aureus) and antifungal (against Candida albicans) activities are reported. A plethora of techniques (X-ray diffraction with Rietveld refinements, inductively coupled plasma atomic emission spectrometry, micro-Raman spectroscopy, attenuated total reflectance–Fourier transform infrared spectroscopy, field emission scanning electron microscopy, ultraviolet–visible spectroscopy, photoluminescence emissions, and X-ray photoelectron spectroscopy) were employed to characterize the as-synthetized samples and determine the local coordination geometry of Cu2+ cations at the orthorhombic lattice. To find a correlation between morphology and biocide activity, the experimental results were sustained by first-principles calculations at the density functional theory level to decipher the cluster coordinations and electronic properties of the exposed surfaces. Based on the analysis of the under-coordinated Ag and Cu clusters at the (010) and (101) exposed surfaces, we propose a mechanism to explain the biocide activity of these solid solutions. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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