Chitosan nanoparticles functionalized with β-cyclodextrin: A promising carrier for botanical pesticides

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dc.contributor.authorCampos, Estefânia V.R. [UNESP]
dc.contributor.authorProença, Patrícia L.F. [UNESP]
dc.contributor.authorOliveira, Jhones L. [UNESP]
dc.contributor.authorMelville, Cirano C. [UNESP]
dc.contributor.authorVechia, Jaqueline F. Della [UNESP]
dc.contributor.authorDe Andrade, Daniel J. [UNESP]
dc.contributor.authorFraceto, Leonardo F. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2018-12-11T17:35:41Z
dc.date.available2018-12-11T17:35:41Z
dc.date.issued2018-12-01
dc.description.abstractCarvacrol and linalool are natural compounds extracted from plants and are known for their insecticidal and repellent activities, respectively. However, their low aqueous solubility, high photosensitivity, and high volatility restrict their application in the control of agricultural pests. The encapsulation of volatile compounds can be an effective way of overcoming such problems. Inclusion complexes between beta-cyclodextrin (β-CD) and carvacrol (CVC) or linalool (LNL) were investigated. Inclusion complexes were prepared by the kneading method. Both complexes presented 1:1 host:guest stoichiometry and the highest affinity constants were observed at 20 °C for both molecules. The nanoparticles containing carvacrol and linalool had mean diameters of 175.2 and 245.8 nm, respectively and high encapsulation efficiencies (<90%) were achieved for both compounds. Biological assays with mites (Tetranychus urticae) showed that the nanoparticles possessed repellency, acaricidal, and oviposition activities against this organism. Nanoencapsulated carvacrol and linalool were significantly more effective in terms of acaricidal and oviposition activities, while the unencapsulated compounds showed better repellency activity. The nanoformulations prepared in this study are good candidates for the sustainable and effective use of botanical compounds in agriculture, contributing to the reduction of environmental contamination, as well as promoting the effective control of pests in agriculture.en
dc.description.affiliationDepartment of Environmental Engineering São Paulo State University (UNESP)
dc.description.affiliationDepartment of Biochemistry and Tissue Biology State University of Campinas
dc.description.affiliationSão Paulo State University (UNESP) College of Agricultural and Veterinary Sciences
dc.description.affiliationUnespDepartment of Environmental Engineering São Paulo State University (UNESP)
dc.description.affiliationUnespSão Paulo State University (UNESP) College of Agricultural and Veterinary Sciences
dc.identifierhttp://dx.doi.org/10.1038/s41598-018-20602-y
dc.identifier.citationScientific Reports, v. 8, n. 1, 2018.
dc.identifier.doi10.1038/s41598-018-20602-y
dc.identifier.file2-s2.0-85041615810.pdf
dc.identifier.issn2045-2322
dc.identifier.scopus2-s2.0-85041615810
dc.identifier.urihttp://hdl.handle.net/11449/179565
dc.language.isoeng
dc.relation.ispartofScientific Reports
dc.relation.ispartofsjr1,533
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.titleChitosan nanoparticles functionalized with β-cyclodextrin: A promising carrier for botanical pesticidesen
dc.typeArtigo

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