Study of loading isothiazolinone based biocide and release profiles from mesoporous silica matrices

Autores
Mardones, Lucas; Legnoverde, María Soledad; Pereyra, Andrea; Basaldella, Elena
Año de publicación
2017
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Silica mesoporous materials were proposed as new hosts for stabilizing isothiazolinone-based biocides. We synthesized two types of porous matrices: SBA-15 silica and mesocellular siliceous foam (MCF). The physicochemical properties of the silicas (structure, textural properties) are evaluated in order to determine their ability to encapsulate, stabilize and subsequently release, a commercial biocide used for latex preservation (CMIT/MIT). CMIT/MIT consists of an aqueous solution of the active ingredients CMIT (5-chloro-2-methyl-4-isothiazolin-3-one) and MIT (2-methyl-4-isothiazolin-3-one), present in a CMIT/MIT: 3/1 weight ratio. The two matrices were loaded with different biocide concentrations by using the traditional incipient wetness impregnation method. N2 adsorption, SEM and FTIR analyses showed that the biocide can be encapsulated within silica frameworks and preserved its original structure. Release tests in aqueous media indicated that the CMIT/MIT concentration in the leaching solution depends on the matrix nature, being the smaller values obtained when ordered matrices were used. Desorption experiments indicated that the biocide delivery in aqueous media could be delayed by increasing the pH of test solutions. Results showed that biocide encapsulation allows maintaining a long-lasting release, preserving the biocide activity even under conditions of temperature and pH at which decomposition and hydrolysis of non-supported CMIT is observed.
Fil: Mardones, Lucas. UTN (Universidad Tecnológica Nacional). CITEMA (Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales). UNLP (Universidad Nacional La Plata). CINDECA; Argentina
Fil: Legnoverde, María Soledad. UTN (Universidad Tecnológica Nacional). CITEMA (Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales). UNLP (Universidad Nacional La Plata). CINDECA; Argentina
Fil: Pereyra, Andrea. UTN (Universidad Tecnológica Nacional). CITEMA (Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales). UNLP (Universidad Nacional La Plata). CINDECA; Argentina
Fil: Basaldella, Elena. UTN (Universidad Tecnológica Nacional). CITEMA (Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales). UNLP (Universidad Nacional La Plata). CINDECA; Argentina
Peer Reviewed
Materia
Study of loading
Isothiazolinone based biocide
Release profiles
Mesoporous silica matrices
Nivel de accesibilidad
acceso abierto
Condiciones de uso
2018-06-14T15:30:39Z
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/2921
Acceder
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network_acronym_str RIAUTN
repository_id_str a
network_name_str Repositorio Institucional Abierto (UTN)
spelling Study of loading isothiazolinone based biocide and release profiles from mesoporous silica matricesMardones, LucasLegnoverde, María SoledadPereyra, AndreaBasaldella, ElenaStudy of loadingIsothiazolinone based biocideRelease profilesMesoporous silica matricesSilica mesoporous materials were proposed as new hosts for stabilizing isothiazolinone-based biocides. We synthesized two types of porous matrices: SBA-15 silica and mesocellular siliceous foam (MCF). The physicochemical properties of the silicas (structure, textural properties) are evaluated in order to determine their ability to encapsulate, stabilize and subsequently release, a commercial biocide used for latex preservation (CMIT/MIT). CMIT/MIT consists of an aqueous solution of the active ingredients CMIT (5-chloro-2-methyl-4-isothiazolin-3-one) and MIT (2-methyl-4-isothiazolin-3-one), present in a CMIT/MIT: 3/1 weight ratio. The two matrices were loaded with different biocide concentrations by using the traditional incipient wetness impregnation method. N2 adsorption, SEM and FTIR analyses showed that the biocide can be encapsulated within silica frameworks and preserved its original structure. Release tests in aqueous media indicated that the CMIT/MIT concentration in the leaching solution depends on the matrix nature, being the smaller values obtained when ordered matrices were used. Desorption experiments indicated that the biocide delivery in aqueous media could be delayed by increasing the pH of test solutions. Results showed that biocide encapsulation allows maintaining a long-lasting release, preserving the biocide activity even under conditions of temperature and pH at which decomposition and hydrolysis of non-supported CMIT is observed.Fil: Mardones, Lucas. UTN (Universidad Tecnológica Nacional). CITEMA (Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales). UNLP (Universidad Nacional La Plata). CINDECA; ArgentinaFil: Legnoverde, María Soledad. UTN (Universidad Tecnológica Nacional). CITEMA (Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales). UNLP (Universidad Nacional La Plata). CINDECA; ArgentinaFil: Pereyra, Andrea. UTN (Universidad Tecnológica Nacional). CITEMA (Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales). UNLP (Universidad Nacional La Plata). CINDECA; ArgentinaFil: Basaldella, Elena. UTN (Universidad Tecnológica Nacional). CITEMA (Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales). UNLP (Universidad Nacional La Plata). CINDECA; ArgentinaPeer ReviewedInternational Colloids Conference2018-06-14T15:30:39Z2018-06-14T15:30:39Z2017info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersiondocunento de conferenciahttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/20.500.12272/2921enginfo:eu-repo/semantics/openAccess2018-06-14T15:30:39ZAtribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.).reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacional2026-09-24T12:44:00Zoai:ria.utn.edu.ar:20.500.12272/2921instacron:UTNInstitucionalhttp://ria.utn.edu.ar/Universidad públicaNo correspondehttp://ria.utn.edu.ar/oaigestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2026-09-24 12:44:02.08Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Study of loading isothiazolinone based biocide and release profiles from mesoporous silica matrices
title Study of loading isothiazolinone based biocide and release profiles from mesoporous silica matrices
spellingShingle Study of loading isothiazolinone based biocide and release profiles from mesoporous silica matrices
Mardones, Lucas
Study of loading
Isothiazolinone based biocide
Release profiles
Mesoporous silica matrices
title_short Study of loading isothiazolinone based biocide and release profiles from mesoporous silica matrices
title_full Study of loading isothiazolinone based biocide and release profiles from mesoporous silica matrices
title_fullStr Study of loading isothiazolinone based biocide and release profiles from mesoporous silica matrices
title_full_unstemmed Study of loading isothiazolinone based biocide and release profiles from mesoporous silica matrices
title_sort Study of loading isothiazolinone based biocide and release profiles from mesoporous silica matrices
dc.creator.none.fl_str_mv Mardones, Lucas
Legnoverde, María Soledad
Pereyra, Andrea
Basaldella, Elena
author Mardones, Lucas
author_facet Mardones, Lucas
Legnoverde, María Soledad
Pereyra, Andrea
Basaldella, Elena
author_role author
author2 Legnoverde, María Soledad
Pereyra, Andrea
Basaldella, Elena
author2_role author
author
author
dc.subject.none.fl_str_mv Study of loading
Isothiazolinone based biocide
Release profiles
Mesoporous silica matrices
topic Study of loading
Isothiazolinone based biocide
Release profiles
Mesoporous silica matrices
dc.description.none.fl_txt_mv Silica mesoporous materials were proposed as new hosts for stabilizing isothiazolinone-based biocides. We synthesized two types of porous matrices: SBA-15 silica and mesocellular siliceous foam (MCF). The physicochemical properties of the silicas (structure, textural properties) are evaluated in order to determine their ability to encapsulate, stabilize and subsequently release, a commercial biocide used for latex preservation (CMIT/MIT). CMIT/MIT consists of an aqueous solution of the active ingredients CMIT (5-chloro-2-methyl-4-isothiazolin-3-one) and MIT (2-methyl-4-isothiazolin-3-one), present in a CMIT/MIT: 3/1 weight ratio. The two matrices were loaded with different biocide concentrations by using the traditional incipient wetness impregnation method. N2 adsorption, SEM and FTIR analyses showed that the biocide can be encapsulated within silica frameworks and preserved its original structure. Release tests in aqueous media indicated that the CMIT/MIT concentration in the leaching solution depends on the matrix nature, being the smaller values obtained when ordered matrices were used. Desorption experiments indicated that the biocide delivery in aqueous media could be delayed by increasing the pH of test solutions. Results showed that biocide encapsulation allows maintaining a long-lasting release, preserving the biocide activity even under conditions of temperature and pH at which decomposition and hydrolysis of non-supported CMIT is observed.
Fil: Mardones, Lucas. UTN (Universidad Tecnológica Nacional). CITEMA (Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales). UNLP (Universidad Nacional La Plata). CINDECA; Argentina
Fil: Legnoverde, María Soledad. UTN (Universidad Tecnológica Nacional). CITEMA (Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales). UNLP (Universidad Nacional La Plata). CINDECA; Argentina
Fil: Pereyra, Andrea. UTN (Universidad Tecnológica Nacional). CITEMA (Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales). UNLP (Universidad Nacional La Plata). CINDECA; Argentina
Fil: Basaldella, Elena. UTN (Universidad Tecnológica Nacional). CITEMA (Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales). UNLP (Universidad Nacional La Plata). CINDECA; Argentina
Peer Reviewed
description Silica mesoporous materials were proposed as new hosts for stabilizing isothiazolinone-based biocides. We synthesized two types of porous matrices: SBA-15 silica and mesocellular siliceous foam (MCF). The physicochemical properties of the silicas (structure, textural properties) are evaluated in order to determine their ability to encapsulate, stabilize and subsequently release, a commercial biocide used for latex preservation (CMIT/MIT). CMIT/MIT consists of an aqueous solution of the active ingredients CMIT (5-chloro-2-methyl-4-isothiazolin-3-one) and MIT (2-methyl-4-isothiazolin-3-one), present in a CMIT/MIT: 3/1 weight ratio. The two matrices were loaded with different biocide concentrations by using the traditional incipient wetness impregnation method. N2 adsorption, SEM and FTIR analyses showed that the biocide can be encapsulated within silica frameworks and preserved its original structure. Release tests in aqueous media indicated that the CMIT/MIT concentration in the leaching solution depends on the matrix nature, being the smaller values obtained when ordered matrices were used. Desorption experiments indicated that the biocide delivery in aqueous media could be delayed by increasing the pH of test solutions. Results showed that biocide encapsulation allows maintaining a long-lasting release, preserving the biocide activity even under conditions of temperature and pH at which decomposition and hydrolysis of non-supported CMIT is observed.
publishDate 2017
dc.date.none.fl_str_mv 2017
2018-06-14T15:30:39Z
2018-06-14T15:30:39Z
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/publishedVersion
docunento de conferencia
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
format conferenceObject
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12272/2921
url http://hdl.handle.net/20.500.12272/2921
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
2018-06-14T15:30:39Z
Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.).
eu_rights_str_mv openAccess
rights_invalid_str_mv 2018-06-14T15:30:39Z
Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.).
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv International Colloids Conference
publisher.none.fl_str_mv International Colloids Conference
dc.source.none.fl_str_mv reponame:Repositorio Institucional Abierto (UTN)
instname:Universidad Tecnológica Nacional
reponame_str Repositorio Institucional Abierto (UTN)
collection Repositorio Institucional Abierto (UTN)
instname_str Universidad Tecnológica Nacional
repository.name.fl_str_mv Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacional
repository.mail.fl_str_mv gestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.ar
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score 13.24418

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