| Full text | |
| Author(s): Show less - |
dos Santos Pereira, Paula Fabiana
;
De Foggi, Camila Cristina
;
Gouveia, Amanda Fernandes
;
Pinatti, Ivo Mateus
;
Cabral, Luis Antonio
;
Guillamon, Eva
;
Sorribes, Ivan
;
San-Miguel, Miguel A.
;
Vergani, Carlos Eduardo
;
Simoes, Alexandre Zirpoli
;
da Silva, Edison Z.
;
Cavalcante, Laecio Santos
;
Llusar, Rosa
;
Longo, Elson
;
Andres, Juan
Total Authors: 15
|
| Document type: | Journal article |
| Source: | INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES; v. 23, n. 18, p. 23-pg., 2022-09-01. |
| Abstract | |
In this work, alpha-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. (AU) | |
| FAPESP's process: | 19/01732-1 - Photocatalytic activity of multifunctional semiconductors: influence of morphology and electron injection |
| Grantee: | Amanda Fernandes Gouveia |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 14/14171-4 - Investigation of the crystalline structure and photoluminescence, photocatalytic and antibacterial properties of the nanocrystals (Ag2-2xZnX)WO4 with (x = 0, 0.25, 0.50, 0.75 and 1) incorporated in chitosan |
| Grantee: | Paula Fabiana dos Santos Pereira Lima |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 17/13008-0 - Metallic nanoparticles-modified by in Situ real-time TEM and Femtosecond pulsed laser and incorporated into Chitosan |
| Grantee: | Paula Fabiana dos Santos Pereira Lima |
| Support Opportunities: | Scholarships abroad - Research Internship - Post-doctor |
| FAPESP's process: | 16/23891-6 - Computer modeling of condensed matter |
| Grantee: | Alex Antonelli |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 13/07296-2 - CDMF - Center for the Development of Functional Materials |
| Grantee: | Elson Longo da Silva |
| Support Opportunities: | Research Grants - Research, Innovation and Dissemination Centers - RIDC |
| FAPESP's process: | 18/20729-9 - Formation of Ag Nanoparticles by Laser Irradiation: An ab inicio Investigation |
| Grantee: | Luis Antônio Cabral |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 19/03722-3 - Evaluation of the Theoretical, Structural and Morphological Properties of Selenium and Silver Nanomaterials for Photoluminescent and Biological Application |
| Grantee: | Ivo Mateus Pinatti |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |