Improved antimicrobial activity of silica–Cu using a heteropolyacid and different precursors by sol–gel: synthesis and characterization

Autores
Arreche, Romina; Bellotti, Natalia; Blanco, Mirta Noemi; Vazquez, Patricia Graciela
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Antimicrobial paintings incorporate biocides in low concentrations to avoid the proliferation of fungi and bacteria inside urban buildings. This study is focused on evaluating the antifungal activity of copper (II) supported on a silica matrix and as counter cation of a heteropolyacid, obtained from the sol-gel method using various catalysts; against two fungal isolates. The fungi used in this evaluation were isolated by routine microbiological techniques, two isolates, Alternaria alternata and Chaetomium globosum were used. In all cases fungi were selected for their ability to grow on the paint films and their negative impact on human health were taken into account. First, were prepared silicas, using tetraethylorthosilicate and methyl trimethoxysilane as precursors and acetic acid, hydrochloric acid, and catalysts while the hydrolysis reaction of the alkoxide. The effect of addition of copper (II) in the form of copper nitrate was studied. With respect to the morphology of the silica, most of which are similar, between pure and modified silica, in all cases. Once the stage of synthesis and characterization of silicas proposals were selected six of them to evaluate their antifungal activity by the plaque inhibition test against both fungi of interest (Alternaria alternata and Chaetomium globosum), and the percent inhibition was determined in each case. Tested Cu-solids were shown to have a higher antifungal activity completely inhibit the growth of both fungi with lower concentrations relative to its target. The work consummate in a preliminary way, guide the selection of a suitable organic biocide from a list of possible antifungal agents.
Fil: Arreche, Romina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
Fil: Bellotti, Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Tecnología de Pinturas (i); Argentina
Fil: Blanco, Mirta Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
Fil: Vazquez, Patricia Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
Materia
Antimicrobial Coatings
Silica
Copper
Sol-Gel Method
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/8314
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/8314
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Improved antimicrobial activity of silica–Cu using a heteropolyacid and different precursors by sol–gel: synthesis and characterizationArreche, RominaBellotti, NataliaBlanco, Mirta NoemiVazquez, Patricia GracielaAntimicrobial CoatingsSilicaCopperSol-Gel Methodhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Antimicrobial paintings incorporate biocides in low concentrations to avoid the proliferation of fungi and bacteria inside urban buildings. This study is focused on evaluating the antifungal activity of copper (II) supported on a silica matrix and as counter cation of a heteropolyacid, obtained from the sol-gel method using various catalysts; against two fungal isolates. The fungi used in this evaluation were isolated by routine microbiological techniques, two isolates, Alternaria alternata and Chaetomium globosum were used. In all cases fungi were selected for their ability to grow on the paint films and their negative impact on human health were taken into account. First, were prepared silicas, using tetraethylorthosilicate and methyl trimethoxysilane as precursors and acetic acid, hydrochloric acid, and catalysts while the hydrolysis reaction of the alkoxide. The effect of addition of copper (II) in the form of copper nitrate was studied. With respect to the morphology of the silica, most of which are similar, between pure and modified silica, in all cases. Once the stage of synthesis and characterization of silicas proposals were selected six of them to evaluate their antifungal activity by the plaque inhibition test against both fungi of interest (Alternaria alternata and Chaetomium globosum), and the percent inhibition was determined in each case. Tested Cu-solids were shown to have a higher antifungal activity completely inhibit the growth of both fungi with lower concentrations relative to its target. The work consummate in a preliminary way, guide the selection of a suitable organic biocide from a list of possible antifungal agents.Fil: Arreche, Romina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; ArgentinaFil: Bellotti, Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Tecnología de Pinturas (i); ArgentinaFil: Blanco, Mirta Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; ArgentinaFil: Vazquez, Patricia Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; ArgentinaSpringer2015-04-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/8314Arreche, Romina; Bellotti, Natalia; Blanco, Mirta Noemi; Vazquez, Patricia Graciela; Improved antimicrobial activity of silica–Cu using a heteropolyacid and different precursors by sol–gel: synthesis and characterization; Springer; Journal Of Sol-gel Science And Technology; 75; 2; 24-4-2015; 374-3820928-07071573-4846enginfo:eu-repo/semantics/altIdentifier/doi/10.1007/s10971-015-3710-8info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007/s10971-015-3710-8info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:04:45Zoai:ri.conicet.gov.ar:11336/8314instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:04:45.726CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Improved antimicrobial activity of silica–Cu using a heteropolyacid and different precursors by sol–gel: synthesis and characterization
title Improved antimicrobial activity of silica–Cu using a heteropolyacid and different precursors by sol–gel: synthesis and characterization
spellingShingle Improved antimicrobial activity of silica–Cu using a heteropolyacid and different precursors by sol–gel: synthesis and characterization
Arreche, Romina
Antimicrobial Coatings
Silica
Copper
Sol-Gel Method
title_short Improved antimicrobial activity of silica–Cu using a heteropolyacid and different precursors by sol–gel: synthesis and characterization
title_full Improved antimicrobial activity of silica–Cu using a heteropolyacid and different precursors by sol–gel: synthesis and characterization
title_fullStr Improved antimicrobial activity of silica–Cu using a heteropolyacid and different precursors by sol–gel: synthesis and characterization
title_full_unstemmed Improved antimicrobial activity of silica–Cu using a heteropolyacid and different precursors by sol–gel: synthesis and characterization
title_sort Improved antimicrobial activity of silica–Cu using a heteropolyacid and different precursors by sol–gel: synthesis and characterization
dc.creator.none.fl_str_mv Arreche, Romina
Bellotti, Natalia
Blanco, Mirta Noemi
Vazquez, Patricia Graciela
author Arreche, Romina
author_facet Arreche, Romina
Bellotti, Natalia
Blanco, Mirta Noemi
Vazquez, Patricia Graciela
author_role author
author2 Bellotti, Natalia
Blanco, Mirta Noemi
Vazquez, Patricia Graciela
author2_role author
author
author
dc.subject.none.fl_str_mv Antimicrobial Coatings
Silica
Copper
Sol-Gel Method
topic Antimicrobial Coatings
Silica
Copper
Sol-Gel Method
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Antimicrobial paintings incorporate biocides in low concentrations to avoid the proliferation of fungi and bacteria inside urban buildings. This study is focused on evaluating the antifungal activity of copper (II) supported on a silica matrix and as counter cation of a heteropolyacid, obtained from the sol-gel method using various catalysts; against two fungal isolates. The fungi used in this evaluation were isolated by routine microbiological techniques, two isolates, Alternaria alternata and Chaetomium globosum were used. In all cases fungi were selected for their ability to grow on the paint films and their negative impact on human health were taken into account. First, were prepared silicas, using tetraethylorthosilicate and methyl trimethoxysilane as precursors and acetic acid, hydrochloric acid, and catalysts while the hydrolysis reaction of the alkoxide. The effect of addition of copper (II) in the form of copper nitrate was studied. With respect to the morphology of the silica, most of which are similar, between pure and modified silica, in all cases. Once the stage of synthesis and characterization of silicas proposals were selected six of them to evaluate their antifungal activity by the plaque inhibition test against both fungi of interest (Alternaria alternata and Chaetomium globosum), and the percent inhibition was determined in each case. Tested Cu-solids were shown to have a higher antifungal activity completely inhibit the growth of both fungi with lower concentrations relative to its target. The work consummate in a preliminary way, guide the selection of a suitable organic biocide from a list of possible antifungal agents.
Fil: Arreche, Romina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
Fil: Bellotti, Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Tecnología de Pinturas (i); Argentina
Fil: Blanco, Mirta Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
Fil: Vazquez, Patricia Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
description Antimicrobial paintings incorporate biocides in low concentrations to avoid the proliferation of fungi and bacteria inside urban buildings. This study is focused on evaluating the antifungal activity of copper (II) supported on a silica matrix and as counter cation of a heteropolyacid, obtained from the sol-gel method using various catalysts; against two fungal isolates. The fungi used in this evaluation were isolated by routine microbiological techniques, two isolates, Alternaria alternata and Chaetomium globosum were used. In all cases fungi were selected for their ability to grow on the paint films and their negative impact on human health were taken into account. First, were prepared silicas, using tetraethylorthosilicate and methyl trimethoxysilane as precursors and acetic acid, hydrochloric acid, and catalysts while the hydrolysis reaction of the alkoxide. The effect of addition of copper (II) in the form of copper nitrate was studied. With respect to the morphology of the silica, most of which are similar, between pure and modified silica, in all cases. Once the stage of synthesis and characterization of silicas proposals were selected six of them to evaluate their antifungal activity by the plaque inhibition test against both fungi of interest (Alternaria alternata and Chaetomium globosum), and the percent inhibition was determined in each case. Tested Cu-solids were shown to have a higher antifungal activity completely inhibit the growth of both fungi with lower concentrations relative to its target. The work consummate in a preliminary way, guide the selection of a suitable organic biocide from a list of possible antifungal agents.
publishDate 2015
dc.date.none.fl_str_mv 2015-04-24
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/8314
Arreche, Romina; Bellotti, Natalia; Blanco, Mirta Noemi; Vazquez, Patricia Graciela; Improved antimicrobial activity of silica–Cu using a heteropolyacid and different precursors by sol–gel: synthesis and characterization; Springer; Journal Of Sol-gel Science And Technology; 75; 2; 24-4-2015; 374-382
0928-0707
1573-4846
url http://hdl.handle.net/11336/8314
identifier_str_mv Arreche, Romina; Bellotti, Natalia; Blanco, Mirta Noemi; Vazquez, Patricia Graciela; Improved antimicrobial activity of silica–Cu using a heteropolyacid and different precursors by sol–gel: synthesis and characterization; Springer; Journal Of Sol-gel Science And Technology; 75; 2; 24-4-2015; 374-382
0928-0707
1573-4846
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s10971-015-3710-8
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007/s10971-015-3710-8
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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