Encapsulation and controlled release of isothiazolinones in zeolite NaY (FAU)

Autores
Mardones, Lucas Emanuel; Barberia Roque, Leyanet; Legnoverde, María Soledad; Gargiulo, Nicola; Bellotti, Natalia; Basaldella, Elena Isabel
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
NaY zeolite, an ordered, large pore molecular sieve pertaining to the FAU zeolite structural group, was studied as a novel matrix for the efficient preparation of a supported isothiazolinone-based biocide, and the results were compared to those corresponding to mesoporous silicas. To analyze the possibility of reducing the biocide ecotoxicity by encapsulation, a commercial biocide used for latex preservation (CMIT/MIT) was incorporated in the NaY zeolite structure by using two different methodologies: equilibrium adsorption (Zeo/Bio sample) and impregnation by total wetting (Zeo/Impreg sample). In the corresponding release tests, despite the large dif ference in the initial biocide amount released, the shape of the curve is nearly the same for both methods. Microbiological tests against fungi and bacteria were performed. The obtained results were compared to those previously obtained using mesoporous ordered silica SBA-15 and mesoporous foam MCF matrices (mesoporous/ biocide samples named SBA-15/Bio, SBA-15/Impreg and MCF/Bio and MCF/Impreg respectively). For the Staphylococcus aureus the results from agar well diffusion assay shows that the inhibition zone is about 64 mm for Zeo/Impreg and about 55 mm for Zeo/Bio. As regards all the other materials, the inhibition zone does not exceed 46 mm. In the case of Escherichia coli, Zeo/Bio and Zeo/Impreg have an inhibition zone of about 43 and 37 mm, respectively. No one of the other materials shows an inhibition zone larger than 30 mm. Zeo/Impreg showed a greater inhibition zone against fungi (47 mm versus Chaetomium globosum and 53 mm versus Alternaria alternata, respectively) than SBA-15 and MCF impregnated with biocide
Centro de Investigación y Desarrollo en Tecnología de Pinturas
Centro de Investigación y Desarrollo en Ciencias Aplicadas
Materia
Química
Zeolite
Biocide
Isothiazolinones
Adsorption
Controlled release
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/146543
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/146543
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Encapsulation and controlled release of isothiazolinones in zeolite NaY (FAU)Mardones, Lucas EmanuelBarberia Roque, LeyanetLegnoverde, María SoledadGargiulo, NicolaBellotti, NataliaBasaldella, Elena IsabelQuímicaZeoliteBiocideIsothiazolinonesAdsorptionControlled releaseNaY zeolite, an ordered, large pore molecular sieve pertaining to the FAU zeolite structural group, was studied as a novel matrix for the efficient preparation of a supported isothiazolinone-based biocide, and the results were compared to those corresponding to mesoporous silicas. To analyze the possibility of reducing the biocide ecotoxicity by encapsulation, a commercial biocide used for latex preservation (CMIT/MIT) was incorporated in the NaY zeolite structure by using two different methodologies: equilibrium adsorption (Zeo/Bio sample) and impregnation by total wetting (Zeo/Impreg sample). In the corresponding release tests, despite the large dif ference in the initial biocide amount released, the shape of the curve is nearly the same for both methods. Microbiological tests against fungi and bacteria were performed. The obtained results were compared to those previously obtained using mesoporous ordered silica SBA-15 and mesoporous foam MCF matrices (mesoporous/ biocide samples named SBA-15/Bio, SBA-15/Impreg and MCF/Bio and MCF/Impreg respectively). For the Staphylococcus aureus the results from agar well diffusion assay shows that the inhibition zone is about 64 mm for Zeo/Impreg and about 55 mm for Zeo/Bio. As regards all the other materials, the inhibition zone does not exceed 46 mm. In the case of Escherichia coli, Zeo/Bio and Zeo/Impreg have an inhibition zone of about 43 and 37 mm, respectively. No one of the other materials shows an inhibition zone larger than 30 mm. Zeo/Impreg showed a greater inhibition zone against fungi (47 mm versus Chaetomium globosum and 53 mm versus Alternaria alternata, respectively) than SBA-15 and MCF impregnated with biocideCentro de Investigación y Desarrollo en Tecnología de PinturasCentro de Investigación y Desarrollo en Ciencias Aplicadas2022-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/146543enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jece.2022.107277info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:18:15Zoai:sedici.unlp.edu.ar:10915/146543Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:18:16.198SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Encapsulation and controlled release of isothiazolinones in zeolite NaY (FAU)
title Encapsulation and controlled release of isothiazolinones in zeolite NaY (FAU)
spellingShingle Encapsulation and controlled release of isothiazolinones in zeolite NaY (FAU)
Mardones, Lucas Emanuel
Química
Zeolite
Biocide
Isothiazolinones
Adsorption
Controlled release
title_short Encapsulation and controlled release of isothiazolinones in zeolite NaY (FAU)
title_full Encapsulation and controlled release of isothiazolinones in zeolite NaY (FAU)
title_fullStr Encapsulation and controlled release of isothiazolinones in zeolite NaY (FAU)
title_full_unstemmed Encapsulation and controlled release of isothiazolinones in zeolite NaY (FAU)
title_sort Encapsulation and controlled release of isothiazolinones in zeolite NaY (FAU)
dc.creator.none.fl_str_mv Mardones, Lucas Emanuel
Barberia Roque, Leyanet
Legnoverde, María Soledad
Gargiulo, Nicola
Bellotti, Natalia
Basaldella, Elena Isabel
author Mardones, Lucas Emanuel
author_facet Mardones, Lucas Emanuel
Barberia Roque, Leyanet
Legnoverde, María Soledad
Gargiulo, Nicola
Bellotti, Natalia
Basaldella, Elena Isabel
author_role author
author2 Barberia Roque, Leyanet
Legnoverde, María Soledad
Gargiulo, Nicola
Bellotti, Natalia
Basaldella, Elena Isabel
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Química
Zeolite
Biocide
Isothiazolinones
Adsorption
Controlled release
topic Química
Zeolite
Biocide
Isothiazolinones
Adsorption
Controlled release
dc.description.none.fl_txt_mv NaY zeolite, an ordered, large pore molecular sieve pertaining to the FAU zeolite structural group, was studied as a novel matrix for the efficient preparation of a supported isothiazolinone-based biocide, and the results were compared to those corresponding to mesoporous silicas. To analyze the possibility of reducing the biocide ecotoxicity by encapsulation, a commercial biocide used for latex preservation (CMIT/MIT) was incorporated in the NaY zeolite structure by using two different methodologies: equilibrium adsorption (Zeo/Bio sample) and impregnation by total wetting (Zeo/Impreg sample). In the corresponding release tests, despite the large dif ference in the initial biocide amount released, the shape of the curve is nearly the same for both methods. Microbiological tests against fungi and bacteria were performed. The obtained results were compared to those previously obtained using mesoporous ordered silica SBA-15 and mesoporous foam MCF matrices (mesoporous/ biocide samples named SBA-15/Bio, SBA-15/Impreg and MCF/Bio and MCF/Impreg respectively). For the Staphylococcus aureus the results from agar well diffusion assay shows that the inhibition zone is about 64 mm for Zeo/Impreg and about 55 mm for Zeo/Bio. As regards all the other materials, the inhibition zone does not exceed 46 mm. In the case of Escherichia coli, Zeo/Bio and Zeo/Impreg have an inhibition zone of about 43 and 37 mm, respectively. No one of the other materials shows an inhibition zone larger than 30 mm. Zeo/Impreg showed a greater inhibition zone against fungi (47 mm versus Chaetomium globosum and 53 mm versus Alternaria alternata, respectively) than SBA-15 and MCF impregnated with biocide
Centro de Investigación y Desarrollo en Tecnología de Pinturas
Centro de Investigación y Desarrollo en Ciencias Aplicadas
description NaY zeolite, an ordered, large pore molecular sieve pertaining to the FAU zeolite structural group, was studied as a novel matrix for the efficient preparation of a supported isothiazolinone-based biocide, and the results were compared to those corresponding to mesoporous silicas. To analyze the possibility of reducing the biocide ecotoxicity by encapsulation, a commercial biocide used for latex preservation (CMIT/MIT) was incorporated in the NaY zeolite structure by using two different methodologies: equilibrium adsorption (Zeo/Bio sample) and impregnation by total wetting (Zeo/Impreg sample). In the corresponding release tests, despite the large dif ference in the initial biocide amount released, the shape of the curve is nearly the same for both methods. Microbiological tests against fungi and bacteria were performed. The obtained results were compared to those previously obtained using mesoporous ordered silica SBA-15 and mesoporous foam MCF matrices (mesoporous/ biocide samples named SBA-15/Bio, SBA-15/Impreg and MCF/Bio and MCF/Impreg respectively). For the Staphylococcus aureus the results from agar well diffusion assay shows that the inhibition zone is about 64 mm for Zeo/Impreg and about 55 mm for Zeo/Bio. As regards all the other materials, the inhibition zone does not exceed 46 mm. In the case of Escherichia coli, Zeo/Bio and Zeo/Impreg have an inhibition zone of about 43 and 37 mm, respectively. No one of the other materials shows an inhibition zone larger than 30 mm. Zeo/Impreg showed a greater inhibition zone against fungi (47 mm versus Chaetomium globosum and 53 mm versus Alternaria alternata, respectively) than SBA-15 and MCF impregnated with biocide
publishDate 2022
dc.date.none.fl_str_mv 2022-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/146543
url http://sedici.unlp.edu.ar/handle/10915/146543
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jece.2022.107277
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
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reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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