Fabrication and characterization of a novel herbicide delivery system with magnetic collectability and Its phytotoxic effect on photosystem II of aquatic macrophyte

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorForini, Mariana Monteiro de Lima-
Autor(es): dc.creatorAntunes, Débora Ribeiro-
Autor(es): dc.creatorCavalcante, Luiz Aparecido Ferreira-
Autor(es): dc.creatorPontes, Montcharles da Silva-
Autor(es): dc.creatorBiscalchim, Érica Rennó-
Autor(es): dc.creatorSanches, Alex Otavio-
Autor(es): dc.creatorSantiago, Etevaldo Felipe-
Autor(es): dc.creatorFraceto, Leonardo Fernandes [UNESP]-
Autor(es): dc.creatorGrillo, Renato [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:36:47Z-
Data de disponibilização: dc.date.available2022-02-22T00:36:47Z-
Data de envio: dc.date.issued2021-02-11-
Data de envio: dc.date.issued2021-02-11-
Data de envio: dc.date.issued2020-09-11-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/202691-
Fonte completa do material: dc.identifierhttp://lattes.cnpq.br/2188736885721242-
Fonte completa do material: dc.identifierhttp://lattes.cnpq.br/4741480538883395-
Fonte completa do material: dc.identifierhttps://orcid.org/0000-0002-0284-5782-
Fonte completa do material: dc.identifierhttps://orcid.org/0000-0002-2827-2038-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/202691-
Descrição: dc.descriptionThe use of nano- and microparticles as a release system for agrochemicals has been increasing in agricultural sector. However, the production of eco-friendly and smart carriers that can be easily handled in the environment is still a challenge for this technology. In this context, we have developed a biodegradable release system for the herbicide atrazine with magnetic properties. Herein, we investigated the (a) physicochemical properties of the atrazine-loaded magnetic poly(ε-caprolactone) microparticles (MPs:ATZ), (b) in vitro release kinetic profile of the herbicide, and (c) phytotoxicity toward photosynthesis in the aquatic fern Azolla caroliniana. The encapsulation efficiency of the herbicide in the MPs:ATZ was ca. 69%, yielding spherical microparticles with a diameter of ca. 100 μm, a sustained-release profile, and easily manipulated with an external magnetic field. Also, phytotoxicity issues showed that the MPs:ATZ maintained their herbicidal activity via inhibition of PSII, showing lower toxicity compared with the nonencapsulated ATZ at 0.01 and 0.02 μmol·L–1. Therefore, this technology may conveniently promote a novel magnetic controlled release of the herbicide ATZ (with the potential to be collected from a watercourse) and act as a nutrient boost to the nontarget plant, with good herbicidal activity and reduced risk to the environment.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionVersão final do editor-
Descrição: dc.descriptionSão Paulo State University (UNESP)-
Descrição: dc.descriptionMato Grosso do Sul State University (UEMS)-
Descrição: dc.descriptionFAPESP: 2017/21004-5-
Descrição: dc.descriptionFAPESP: 2019/20124-2-
Descrição: dc.descriptionCNPq: 427498/ 2018-0-
Descrição: dc.descriptionCAPES: Finance Code 001-
Idioma: dc.languageen-
Publicador: dc.publisherAmerican Chemical Society (ACS)-
Relação: dc.relationJournal of Agricultural and Food Chemistry-
Direitos: dc.rightsAcesso restrito-
Palavras-chave: dc.subjectMicroparticles-
Palavras-chave: dc.subjectControlled release-
Palavras-chave: dc.subjectMagnetic NPs-
Palavras-chave: dc.subjectAtrazine-
Palavras-chave: dc.subjectAzolla caroliniana-
Título: dc.titleFabrication and characterization of a novel herbicide delivery system with magnetic collectability and Its phytotoxic effect on photosystem II of aquatic macrophyte-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.