Functionalized zirconia compounds as antifungal additives for hygienic waterborne coatings

The addition of silver (Ag) into the chemical synthesis of materials, transform them into materials technologically relevant to be used as antimicrobial additives. In this work, the sol-gel method was used to obtain materials based on silica and zirconia, with the inclusion of Ag. The solids were ch...

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Detalles Bibliográficos
Autores principales: Arreche, Romina Andrea, Igal, Katerine, Bellotti, Natalia, Deyá, Marta Cecilia, Vázquez, Patricia Graciela
Formato: Articulo
Lenguaje:Español
Publicado: 2019
Materias:
Química
Silica
Zirconia
Silver
Antimicrobial additives
Hygienic coatings
Bio-resistance
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/80236
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-80236
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Química
Silica
Zirconia
Silver
Antimicrobial additives
Hygienic coatings
Bio-resistance
spellingShingle Química
Silica
Zirconia
Silver
Antimicrobial additives
Hygienic coatings
Bio-resistance
Arreche, Romina Andrea
Igal, Katerine
Bellotti, Natalia
Deyá, Marta Cecilia
Vázquez, Patricia Graciela
Functionalized zirconia compounds as antifungal additives for hygienic waterborne coatings
topic_facet Química
Silica
Zirconia
Silver
Antimicrobial additives
Hygienic coatings
Bio-resistance
description The addition of silver (Ag) into the chemical synthesis of materials, transform them into materials technologically relevant to be used as antimicrobial additives. In this work, the sol-gel method was used to obtain materials based on silica and zirconia, with the inclusion of Ag. The solids were characterized by potentiometric titration, specific surface area (SBET), X-Ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) and, the antifungal activity of the additives was assessed by agar plate inhibition against Chaetomium globosum and Alternaria alternata. In addition, the resistance to fungal growth on waterborne coatings was evaluated after the incorporation of the solids into paint formulation. Amorphous materials with different acidic and textural properties were obtained. Most of the tested solids showed antifungal activity at the highest concentration used, and the presence of Ag increased the percentage of inhibition. The mixed oxides Ag-additives improved the antifungal activity compare with the pure Ag-oxides (silica or zirconia). In this sense, a synergic effect between zirconia/silica and silver would be a promising result that would reduce the amount of silver in these bioactive materials. This work was performed as a preliminary study, in order to guide the selection of a suitable additive from a list of possible antifungal agents.
format Articulo
Articulo
author Arreche, Romina Andrea
Igal, Katerine
Bellotti, Natalia
Deyá, Marta Cecilia
Vázquez, Patricia Graciela
author_facet Arreche, Romina Andrea
Igal, Katerine
Bellotti, Natalia
Deyá, Marta Cecilia
Vázquez, Patricia Graciela
author_sort Arreche, Romina Andrea
title Functionalized zirconia compounds as antifungal additives for hygienic waterborne coatings
title_short Functionalized zirconia compounds as antifungal additives for hygienic waterborne coatings
title_full Functionalized zirconia compounds as antifungal additives for hygienic waterborne coatings
title_fullStr Functionalized zirconia compounds as antifungal additives for hygienic waterborne coatings
title_full_unstemmed Functionalized zirconia compounds as antifungal additives for hygienic waterborne coatings
title_sort functionalized zirconia compounds as antifungal additives for hygienic waterborne coatings
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/80236
work_keys_str_mv AT arrecherominaandrea functionalizedzirconiacompoundsasantifungaladditivesforhygienicwaterbornecoatings
AT igalkaterine functionalizedzirconiacompoundsasantifungaladditivesforhygienicwaterbornecoatings
AT bellottinatalia functionalizedzirconiacompoundsasantifungaladditivesforhygienicwaterbornecoatings
AT deyamartacecilia functionalizedzirconiacompoundsasantifungaladditivesforhygienicwaterbornecoatings
AT vazquezpatriciagraciela functionalizedzirconiacompoundsasantifungaladditivesforhygienicwaterbornecoatings
bdutipo_str Repositorios
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