Development of a Preemergent Nanoherbicide: From Efficiency Evaluation to the Assessment of Environmental Fate and Risks to Soil Microorganisms
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1021/acsnanoscienceau.1c00055 http://hdl.handle.net/11449/242253 |
Resumo: | Nanoparticles based on biodegradable polymers have been shown to be excellent herbicide carriers, improving weed control and protecting the active ingredient in the crop fields. Metribuzin is often found in natural waters, which raises environmental concerns. Nanoencapsulation of this herbicide could be an alternative to reduce its losses to the environment and improve gains in its efficiency. However, there is a paucity of information about the behavior of nanoformulations of herbicides in environmental matrices. In this study, the stability of nanoencapsulated metribuzin in polymeric nanoparticles (nanoMTZ) was verified over time, as well as its dissipation in different soils, followed by the effects on soil enzymatic activity. The physiological parameters and control effects of nanoMTZ on Ipomoea grandifolia plants were investigated. No differences were verified in the half-life of nanoencapsulated metribuzin compared to a commercial formulation of the herbicide. Moreover, no suppressive effects on soil enzymatic activities were observed. The retention of nanoMTZ in the tested soils was lower compared to its commercial analogue. However, the mobility of nanoencapsulated metribuzin was not greatly increased, reflecting a low risk of groundwater contamination. Weed control was effective even at the lowest dose of nanoMTZ (48 g a.i. ha-1), which was consistent with the higher efficiency of nanoMTZ compared to the conventional herbicide in inhibiting PSII activity and decreasing pigment levels. Overall, we verified that nanoMTZ presented a low environmental risk, with increased weed control. |
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Repositório Institucional da UNESP |
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Development of a Preemergent Nanoherbicide: From Efficiency Evaluation to the Assessment of Environmental Fate and Risks to Soil Microorganismsbiodegradationchemical controlleachingnanopesticidesoil enzyme activitysorption-desorptionNanoparticles based on biodegradable polymers have been shown to be excellent herbicide carriers, improving weed control and protecting the active ingredient in the crop fields. Metribuzin is often found in natural waters, which raises environmental concerns. Nanoencapsulation of this herbicide could be an alternative to reduce its losses to the environment and improve gains in its efficiency. However, there is a paucity of information about the behavior of nanoformulations of herbicides in environmental matrices. In this study, the stability of nanoencapsulated metribuzin in polymeric nanoparticles (nanoMTZ) was verified over time, as well as its dissipation in different soils, followed by the effects on soil enzymatic activity. The physiological parameters and control effects of nanoMTZ on Ipomoea grandifolia plants were investigated. No differences were verified in the half-life of nanoencapsulated metribuzin compared to a commercial formulation of the herbicide. Moreover, no suppressive effects on soil enzymatic activities were observed. The retention of nanoMTZ in the tested soils was lower compared to its commercial analogue. However, the mobility of nanoencapsulated metribuzin was not greatly increased, reflecting a low risk of groundwater contamination. Weed control was effective even at the lowest dose of nanoMTZ (48 g a.i. ha-1), which was consistent with the higher efficiency of nanoMTZ compared to the conventional herbicide in inhibiting PSII activity and decreasing pigment levels. Overall, we verified that nanoMTZ presented a low environmental risk, with increased weed control.Center of Nuclear Energy in Agriculture University of São Paulo, Av. Centenário 303 SPInstitute of Science and Technology São Paulo State University (UNESP), Av. Três de Março 511, SPDepartment of Animal and Plant Biology State University of Londrina, PR 445, km 380, PRInstitute of Science and Technology São Paulo State University (UNESP), Av. Três de Março 511, SPUniversidade de São Paulo (USP)Universidade Estadual Paulista (UNESP)Universidade Estadual de Londrina (UEL)Takeshita, VanessaCarvalho, Lucas Bragança [UNESP]Galhardi, Juliana Aparecida [UNESP]Munhoz-Garcia, Gustavo ViníciosPimpinato, Rodrigo FlorianoOliveira, Halley CaixetaTornisielo, Valdemar LuizFraceto, Leonardo Fernandes [UNESP]2023-03-02T12:25:51Z2023-03-02T12:25:51Z2022-08-17info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article307-323http://dx.doi.org/10.1021/acsnanoscienceau.1c00055ACS Nanoscience Au, v. 2, n. 4, p. 307-323, 2022.2694-2496http://hdl.handle.net/11449/24225310.1021/acsnanoscienceau.1c000552-s2.0-85137382793Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengACS Nanoscience Auinfo:eu-repo/semantics/openAccess2023-03-02T12:25:52Zoai:repositorio.unesp.br:11449/242253Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:07:33.154212Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Development of a Preemergent Nanoherbicide: From Efficiency Evaluation to the Assessment of Environmental Fate and Risks to Soil Microorganisms |
title |
Development of a Preemergent Nanoherbicide: From Efficiency Evaluation to the Assessment of Environmental Fate and Risks to Soil Microorganisms |
spellingShingle |
Development of a Preemergent Nanoherbicide: From Efficiency Evaluation to the Assessment of Environmental Fate and Risks to Soil Microorganisms Takeshita, Vanessa biodegradation chemical control leaching nanopesticide soil enzyme activity sorption-desorption |
title_short |
Development of a Preemergent Nanoherbicide: From Efficiency Evaluation to the Assessment of Environmental Fate and Risks to Soil Microorganisms |
title_full |
Development of a Preemergent Nanoherbicide: From Efficiency Evaluation to the Assessment of Environmental Fate and Risks to Soil Microorganisms |
title_fullStr |
Development of a Preemergent Nanoherbicide: From Efficiency Evaluation to the Assessment of Environmental Fate and Risks to Soil Microorganisms |
title_full_unstemmed |
Development of a Preemergent Nanoherbicide: From Efficiency Evaluation to the Assessment of Environmental Fate and Risks to Soil Microorganisms |
title_sort |
Development of a Preemergent Nanoherbicide: From Efficiency Evaluation to the Assessment of Environmental Fate and Risks to Soil Microorganisms |
author |
Takeshita, Vanessa |
author_facet |
Takeshita, Vanessa Carvalho, Lucas Bragança [UNESP] Galhardi, Juliana Aparecida [UNESP] Munhoz-Garcia, Gustavo Vinícios Pimpinato, Rodrigo Floriano Oliveira, Halley Caixeta Tornisielo, Valdemar Luiz Fraceto, Leonardo Fernandes [UNESP] |
author_role |
author |
author2 |
Carvalho, Lucas Bragança [UNESP] Galhardi, Juliana Aparecida [UNESP] Munhoz-Garcia, Gustavo Vinícios Pimpinato, Rodrigo Floriano Oliveira, Halley Caixeta Tornisielo, Valdemar Luiz Fraceto, Leonardo Fernandes [UNESP] |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (UNESP) Universidade Estadual de Londrina (UEL) |
dc.contributor.author.fl_str_mv |
Takeshita, Vanessa Carvalho, Lucas Bragança [UNESP] Galhardi, Juliana Aparecida [UNESP] Munhoz-Garcia, Gustavo Vinícios Pimpinato, Rodrigo Floriano Oliveira, Halley Caixeta Tornisielo, Valdemar Luiz Fraceto, Leonardo Fernandes [UNESP] |
dc.subject.por.fl_str_mv |
biodegradation chemical control leaching nanopesticide soil enzyme activity sorption-desorption |
topic |
biodegradation chemical control leaching nanopesticide soil enzyme activity sorption-desorption |
description |
Nanoparticles based on biodegradable polymers have been shown to be excellent herbicide carriers, improving weed control and protecting the active ingredient in the crop fields. Metribuzin is often found in natural waters, which raises environmental concerns. Nanoencapsulation of this herbicide could be an alternative to reduce its losses to the environment and improve gains in its efficiency. However, there is a paucity of information about the behavior of nanoformulations of herbicides in environmental matrices. In this study, the stability of nanoencapsulated metribuzin in polymeric nanoparticles (nanoMTZ) was verified over time, as well as its dissipation in different soils, followed by the effects on soil enzymatic activity. The physiological parameters and control effects of nanoMTZ on Ipomoea grandifolia plants were investigated. No differences were verified in the half-life of nanoencapsulated metribuzin compared to a commercial formulation of the herbicide. Moreover, no suppressive effects on soil enzymatic activities were observed. The retention of nanoMTZ in the tested soils was lower compared to its commercial analogue. However, the mobility of nanoencapsulated metribuzin was not greatly increased, reflecting a low risk of groundwater contamination. Weed control was effective even at the lowest dose of nanoMTZ (48 g a.i. ha-1), which was consistent with the higher efficiency of nanoMTZ compared to the conventional herbicide in inhibiting PSII activity and decreasing pigment levels. Overall, we verified that nanoMTZ presented a low environmental risk, with increased weed control. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-08-17 2023-03-02T12:25:51Z 2023-03-02T12:25:51Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1021/acsnanoscienceau.1c00055 ACS Nanoscience Au, v. 2, n. 4, p. 307-323, 2022. 2694-2496 http://hdl.handle.net/11449/242253 10.1021/acsnanoscienceau.1c00055 2-s2.0-85137382793 |
url |
http://dx.doi.org/10.1021/acsnanoscienceau.1c00055 http://hdl.handle.net/11449/242253 |
identifier_str_mv |
ACS Nanoscience Au, v. 2, n. 4, p. 307-323, 2022. 2694-2496 10.1021/acsnanoscienceau.1c00055 2-s2.0-85137382793 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
ACS Nanoscience Au |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
307-323 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129586866683904 |