Carvacrol and linalool co-loaded in β-cyclodextrin-grafted chitosan nanoparticles as sustainable biopesticide aiming pest control

Scientific Reports
Estefânia V R CamposLeonardo F Fraceto

Abstract

Pesticides are the main tactics for pest control because they reduce the pest population very fast and their efficiency does not depend on abiotic factors. However, the indiscriminate use of these substances can speed up the development of resistant populations and causing environmental contamination. Therefore, alternative methods of pest control are sought, such as the use of botanical compounds. Nanoencapsulation of volatile compounds has been shown to be an important tool that can be used to overcome the lack of stability of these compounds. In this work, we describe the preparation and characterization of chitosan nanoparticles functionalized with β-cyclodextrin containing carvacrol and linalool. The toxicity and biological activity were evaluated. Decreases of toxicity were observed when the compounds were nanoencapsulated. The nanoparticles presented insecticidal activity against the species Helicoverpa armigera (corn earworm) and Tetranychus urticae (spider mite). In addition, repellent activity and reduction in oviposition were observed for the mites.

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Citations

Jan 18, 2019·Pest Management Science·Jhones L de OliveiraLeonardo Fernandes Fraceto
Sep 13, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Philippe M LoiseauSimon L Croft
Jul 28, 2020·Pharmaceutics·Anastasia DetsiPanagiotis Zoumpoulakis
Jan 26, 2021·Frontiers in Cellular and Infection Microbiology·Lígia Nunes de Morais RibeiroBelchiolina Beatriz Fonseca
May 16, 2021·Journal of Hazardous Materials·Renata Aparecida MonteiroLeonardo Fernandes Fraceto
Jul 3, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Dário Rodrigues do Nascimento JuniorSilvio Alexandre Beisl Vieira de Melo
Aug 4, 2018·Journal of Agricultural and Food Chemistry·Jhones Luiz de OliveiraLeonardo Fernandes Fraceto
Dec 19, 2018·Journal of Agricultural and Food Chemistry·Beatriz GámizRafael Celis

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Methods Mentioned

BETA
dynamic light scattering
transmission
atomic force microscopy
AFM

Software Mentioned

Graphpad Prism
Gwyddion

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