Insecticidal Activity of [Cu(H2NTA)2].2H2O in Aedes aegypti Larvae (Diptera: Culicidae)

The demand for new insecticides and alternative strategies for the population control of Aedes aegypti has stimulated research to obtain new compounds with broad biological activity. Accordingly, the dihydrogen nitrilotriacetate complex of copper (II) dihydrate, [Cu(H2NTA)2].2H2O, was synthesized by...

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Bibliographic Details
Published in:Orbital : The Electronic Journal of Chemistry 2015-12, Vol.7 (4), p.369-375
Main Authors: Alessandra Ramos Lima, Eduardo José de Arruda, Cláudio Teodoro de Carvalho, Cícera Maria da Silva, Magda Freitas Fernandes, Mika Fumie Haiashi Kato, Isaías Cabrini, Carlos Fernando Salgueirosa de Andrade
Format: Article
Language:English
Subjects:
biological activity
chemical control
copper
metal-insecticide
mosquitoes
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Summary:The demand for new insecticides and alternative strategies for the population control of Aedes aegypti has stimulated research to obtain new compounds with broad biological activity. Accordingly, the dihydrogen nitrilotriacetate complex of copper (II) dihydrate, [Cu(H2NTA)2].2H2O, was synthesized by the stoichiometric reaction of nitrilotriacetic acid (H3NTA) hydroxide with basic copper carbonate (II) (Cu2(OH)2CO3) and characterized by the spectroscopic techniques UV-Vis and FT-IR. The biological toxicity in A. aegypti was determined by bioassay using concentrations ranging from 90.0 mg L−1 to 897.4 mg L−1. The LC50 obtained was 146.11 mg L−1 [132.18–160.10] and the LT50 obtained at a concentration of 897.4 mg L−1 was 70.61 min [38.21–94.90]. The results showed that the complex obtained in this work is a potential metal-insecticide.   DOI: http://dx.doi.org/10.17807/orbital.v7i4.735  
ISSN:1984-6428
DOI:10.17807/orbital.v7i4.735