Controlled biocide release from hierarchically-structured biogenic silica: surface chemistry to tune release rate and responsiveness.
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1091250 |
Resumo: | Biocides are essential for crop protection, packaging and several other biosystem applications. Therein, properties such as tailored and controlled release are paramount in the development of sustainable biocide delivery systems. We explore the self-similar nano-organized architecture of biogenic silica particles to achieve high biocide payload. The high surface area accessibility of the carrier allowed us to develop an efcient, low energy loading strategy, reaching signifcant dynamic loadings of up to 100mg·g?1. The release rate and responsiveness were tuned by manipulating the interfaces, using either the native hydroxyl surfaces of the carrier or systems modifed with amines or carboxylic acids in high density. We thoroughly evaluated the impact of the carrier-biocide interactions on the release rate as a function of pH, ionic strength and temperature. The amine and carboxyl functionalization strategy led to three-fold decrease in the release rate, while higher responsiveness against important agro-industrial variables. Key to our discoveries, nanostructuring thymol in the biogenic silica endowed systems with controlled, responsive release promoting remarkable, high and localized biocidal activity. The interfacial factors afecting related delivery were elucidated for an increased and localized biocidal activity, bringing a new light for the development of controlled release systems from porous materials. |
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Controlled biocide release from hierarchically-structured biogenic silica: surface chemistry to tune release rate and responsiveness.Biogenic silicaBiocide delivery systemSlow releaseNanoporous materialChemical surface modificationNatural biocideNanobiocidesFractal supra structureBiological activityMesoporous silicaFunctionalization of nanoparticlesSistema de liberação de biocidaNanotecnologiaSílica biogênicaLiberação lentaMaterial nanoporosoBiocida naturalTimolModificação química de superfícieNanobiocidaSupraestrutura fractalAtividade biológicaSílica mesoporosaFuncionalização de nanopartículasBiocidesNanotechnologyThymolBiocides are essential for crop protection, packaging and several other biosystem applications. Therein, properties such as tailored and controlled release are paramount in the development of sustainable biocide delivery systems. We explore the self-similar nano-organized architecture of biogenic silica particles to achieve high biocide payload. The high surface area accessibility of the carrier allowed us to develop an efcient, low energy loading strategy, reaching signifcant dynamic loadings of up to 100mg·g?1. The release rate and responsiveness were tuned by manipulating the interfaces, using either the native hydroxyl surfaces of the carrier or systems modifed with amines or carboxylic acids in high density. We thoroughly evaluated the impact of the carrier-biocide interactions on the release rate as a function of pH, ionic strength and temperature. The amine and carboxyl functionalization strategy led to three-fold decrease in the release rate, while higher responsiveness against important agro-industrial variables. Key to our discoveries, nanostructuring thymol in the biogenic silica endowed systems with controlled, responsive release promoting remarkable, high and localized biocidal activity. The interfacial factors afecting related delivery were elucidated for an increased and localized biocidal activity, bringing a new light for the development of controlled release systems from porous materials.Bruno D. Mattos, Doutorando da UFPR / Aalto University; Blaise L. Tardy, Aalto University; Mohammadi Pezhman, Aalto University; Tero Kämäräinen, Aalto University; Markus Linder, Aalto University; Wido H. Schreiner, UFPR; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; Orlando J. Rojas, Aalto University.MATTOS, B. D.TARDY, B. L.PEZHMAN, M.KÄMÄRÄINEN, T.LINDER, M.SCHREINER, W. H.MAGALHAES, W. L. E.ROJAS, O. J.2018-05-10T01:06:10Z2018-05-10T01:06:10Z2018-05-0820182019-11-07T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleScientific Reports, v. 8, Article 5555, Apr. 2018. 11 p.http://www.alice.cnptia.embrapa.br/alice/handle/doc/109125010.1038/s41598-018-23921-2enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2018-05-10T01:06:16Zoai:www.alice.cnptia.embrapa.br:doc/1091250Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542018-05-10T01:06:16falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542018-05-10T01:06:16Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Controlled biocide release from hierarchically-structured biogenic silica: surface chemistry to tune release rate and responsiveness. |
title |
Controlled biocide release from hierarchically-structured biogenic silica: surface chemistry to tune release rate and responsiveness. |
spellingShingle |
Controlled biocide release from hierarchically-structured biogenic silica: surface chemistry to tune release rate and responsiveness. MATTOS, B. D. Biogenic silica Biocide delivery system Slow release Nanoporous material Chemical surface modification Natural biocide Nanobiocides Fractal supra structure Biological activity Mesoporous silica Functionalization of nanoparticles Sistema de liberação de biocida Nanotecnologia Sílica biogênica Liberação lenta Material nanoporoso Biocida natural Timol Modificação química de superfície Nanobiocida Supraestrutura fractal Atividade biológica Sílica mesoporosa Funcionalização de nanopartículas Biocides Nanotechnology Thymol |
title_short |
Controlled biocide release from hierarchically-structured biogenic silica: surface chemistry to tune release rate and responsiveness. |
title_full |
Controlled biocide release from hierarchically-structured biogenic silica: surface chemistry to tune release rate and responsiveness. |
title_fullStr |
Controlled biocide release from hierarchically-structured biogenic silica: surface chemistry to tune release rate and responsiveness. |
title_full_unstemmed |
Controlled biocide release from hierarchically-structured biogenic silica: surface chemistry to tune release rate and responsiveness. |
title_sort |
Controlled biocide release from hierarchically-structured biogenic silica: surface chemistry to tune release rate and responsiveness. |
author |
MATTOS, B. D. |
author_facet |
MATTOS, B. D. TARDY, B. L. PEZHMAN, M. KÄMÄRÄINEN, T. LINDER, M. SCHREINER, W. H. MAGALHAES, W. L. E. ROJAS, O. J. |
author_role |
author |
author2 |
TARDY, B. L. PEZHMAN, M. KÄMÄRÄINEN, T. LINDER, M. SCHREINER, W. H. MAGALHAES, W. L. E. ROJAS, O. J. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Bruno D. Mattos, Doutorando da UFPR / Aalto University; Blaise L. Tardy, Aalto University; Mohammadi Pezhman, Aalto University; Tero Kämäräinen, Aalto University; Markus Linder, Aalto University; Wido H. Schreiner, UFPR; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; Orlando J. Rojas, Aalto University. |
dc.contributor.author.fl_str_mv |
MATTOS, B. D. TARDY, B. L. PEZHMAN, M. KÄMÄRÄINEN, T. LINDER, M. SCHREINER, W. H. MAGALHAES, W. L. E. ROJAS, O. J. |
dc.subject.por.fl_str_mv |
Biogenic silica Biocide delivery system Slow release Nanoporous material Chemical surface modification Natural biocide Nanobiocides Fractal supra structure Biological activity Mesoporous silica Functionalization of nanoparticles Sistema de liberação de biocida Nanotecnologia Sílica biogênica Liberação lenta Material nanoporoso Biocida natural Timol Modificação química de superfície Nanobiocida Supraestrutura fractal Atividade biológica Sílica mesoporosa Funcionalização de nanopartículas Biocides Nanotechnology Thymol |
topic |
Biogenic silica Biocide delivery system Slow release Nanoporous material Chemical surface modification Natural biocide Nanobiocides Fractal supra structure Biological activity Mesoporous silica Functionalization of nanoparticles Sistema de liberação de biocida Nanotecnologia Sílica biogênica Liberação lenta Material nanoporoso Biocida natural Timol Modificação química de superfície Nanobiocida Supraestrutura fractal Atividade biológica Sílica mesoporosa Funcionalização de nanopartículas Biocides Nanotechnology Thymol |
description |
Biocides are essential for crop protection, packaging and several other biosystem applications. Therein, properties such as tailored and controlled release are paramount in the development of sustainable biocide delivery systems. We explore the self-similar nano-organized architecture of biogenic silica particles to achieve high biocide payload. The high surface area accessibility of the carrier allowed us to develop an efcient, low energy loading strategy, reaching signifcant dynamic loadings of up to 100mg·g?1. The release rate and responsiveness were tuned by manipulating the interfaces, using either the native hydroxyl surfaces of the carrier or systems modifed with amines or carboxylic acids in high density. We thoroughly evaluated the impact of the carrier-biocide interactions on the release rate as a function of pH, ionic strength and temperature. The amine and carboxyl functionalization strategy led to three-fold decrease in the release rate, while higher responsiveness against important agro-industrial variables. Key to our discoveries, nanostructuring thymol in the biogenic silica endowed systems with controlled, responsive release promoting remarkable, high and localized biocidal activity. The interfacial factors afecting related delivery were elucidated for an increased and localized biocidal activity, bringing a new light for the development of controlled release systems from porous materials. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-05-10T01:06:10Z 2018-05-10T01:06:10Z 2018-05-08 2018 2019-11-07T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Scientific Reports, v. 8, Article 5555, Apr. 2018. 11 p. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1091250 10.1038/s41598-018-23921-2 |
identifier_str_mv |
Scientific Reports, v. 8, Article 5555, Apr. 2018. 11 p. 10.1038/s41598-018-23921-2 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1091250 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503453867769856 |