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dc.contributor.author
Arreche, Romina
dc.contributor.author
Bellotti, Natalia
dc.contributor.author
Blanco, Mirta Noemi
dc.contributor.author
Vazquez, Patricia Graciela
dc.date.available
2016-11-23T20:10:30Z
dc.date.issued
2015-04-24
dc.identifier.citation
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
dc.identifier.issn
0928-0707
dc.identifier.uri
http://hdl.handle.net/11336/8314
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Antimicrobial Coatings
dc.subject
Silica
dc.subject
Copper
dc.subject
Sol-Gel Method
dc.subject.classification
Otras Ciencias Químicas
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Ciencias Químicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Improved antimicrobial activity of silica–Cu using a heteropolyacid and different precursors by sol–gel: synthesis and characterization
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-10-11T13:52:00Z
dc.identifier.eissn
1573-4846
dc.journal.volume
75
dc.journal.number
2
dc.journal.pagination
374-382
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Arreche, Romina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
dc.description.fil
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
dc.description.fil
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
dc.description.fil
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
dc.journal.title
Journal Of Sol-gel Science And Technology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/DOI 10.1007/s10971-015-3710-8
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10971-015-3710-8
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007/s10971-015-3710-8


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