Author(s):
Oliveira, Lucas Portela [UNESP] ; Foggi, Camila Cristina de ; Pimentel, Bruna Natália Alves da Silva [UNESP] ; Assis, Marcelo ; Andrés, Juan ; Longo, Elson ; Vergani, Carlos Eduardo [UNESP]
Date: 2021
Persistent ID: http://hdl.handle.net/11449/208675
Origin: Oasisbr
Subject(s): Ag3PO4; Fungicide activity; Photocatalysis; Rhodamine B degradation; Visible light; Ag3PO4; Ag3PO4; Fungicide activity; Fungicide activity; Photocatalysis; Photocatalysis; Rhodamine B degradation; Rhodamine B degradation; Visible light; Visible light
Description
Made available in DSpace on 2021-06-25T11:16:00Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Ministerio de Ciencia, Innovación y Universidades
Universitat Jaume I
The present study reports for the first time the performance of silver phosphate (Ag3PO4) microcrystals as photocatalyst (degradation of Rodamine B-RhB) and antifungal agent (against Candida albicans–C. albicans) under visible-light irradiation (455 nm). Ag3PO4 microcrystals were synthesized by a simple co-precipitation (CP) method at room temperature. The structural and electronic properties of the as-synthetized Ag3PO4 have been investigated before and after 4 cycles of RhB degradation under visible light using X-ray diffraction (XRD), micro-Raman spectroscopy, UV–Vis spectrophotometer and field emission scanning electron microscopy (FE-SEM) images. The antifungal activity was analyzed in planktonic cells and 48h-biofilm of C. albicans by colony forming units (CFU) counting, confocal laser and FE-SE microscopies. Statistical analysis was carried out using SPSS software. Morphological and structural modifications of Ag3PO4 were observed upon recycling. After 4 recycles, the material maintained its photodegradation property; an eightfold increase in the efficiency of Ag3PO4 was observed in planktonic cells and a two fold increase in biofilm when irradiated under visible light. Thus, higher antifungal effectiveness against C. albicans was obtained when associated with visible-light irradiation.
São Paulo State University (UNESP) School of Dentistry Department of Dental Materials and Prosthodontics, 1680 Humaitá Street
Federal University of São Carlos (UFSCar) Department of Chemistry, 676 Washington Luis Highway
Universitat Jaume I (UJI) Department of Physical and Analytical Chemistry
São Paulo State University (UNESP) School of Dentistry Department of Dental Materials and Prosthodontics, 1680 Humaitá Street
FAPESP: # CDMF: 2013/07296-2
FAPESP: #2015/13834-2
FAPESP: #2017/12594-3
FAPESP: #2019/13507-2
CAPES: 001
Ministerio de Ciencia, Innovación y Universidades: PGC2018-094417-B-I00
Universitat Jaume I: UJI-B2019-30
