| Literature DB >> 24359912 |
Jorge Omar Werdin González1, María Mercedes Gutiérrez2, Adriana Alicia Ferrero2, Beatriz Fernández Band3.
Abstract
The lethal and sublethal activity of poly(ethylene glycol) (PEG) nanoparticles containing essential oils (EO), also the physicochemical characterization, were determined against Tribolium castaneum and Rhizopertha dominica. The 10% ratio EO-PEG nanoparticles showed an average diameter<235 nm (PDI<0.280) and a loading efficacy>75%; after 6 month of storage their size did not change significantly and the amount of the EOs decreased 25%, approximately. Furthermore, during this period, no chemical derivates were observed. The EOs nanoparticles produced a notable increase of the residual contact toxicity apparently due to the slow and persistent release of the active terpenes. In addition, the nanoformulation enhanced the EO contact toxicity and altered the nutritional physiology of both stored product pest. The results indicated that these novel systems could be used in integrated pest management program for T. castaneum and R. dominica control.Entities:
Keywords: Geranium and bergamot essential oils; Nanoparticles; Nutritional physiology; Release profiles; Residual contact toxicity
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Year: 2013 PMID： 24359912 DOI： 10.1016/j.chemosphere.2013.11.056
Source DB: PubMed Journal: Chemosphere ISSN： 0045-6535 Impact factor: 7.086