Copper II - Polar amino acid complexes: Toxicity to bacteria and larvae of Aedes aegypti. Rodrigues, T. A. D., Arruda, E. J. D., Fernandes, M. F., Carvalho, C. T. D., Lima, A. R., & Cabrini, I. Anais da Academia Brasileira de Ciencias, 89(3):2273–2280, 2017. ISBN: 1720160775doi abstract bibtex Control strategies using insecticides are sometimes ineffective due to the resistance of the insect vectors.In this scenario new products must be proposed for the control of insect vectors.The complexes L-aspartate Cu (II) and L-glutamate-Cu (II) complexes were synthesized and characterized by elemental analysis, visible ultraviolet, infrared spectroscopy and potentiometric titration. The toxicity of these complexes was analyzed in Aedes aegypti (Diptera: Culicidae) larvae and Gram-negative and Gram-positive bacteria. The interaction between the ligands and the amino acid balance and the distribution of the species as a function of pH were discussed. The lethal concentration median (LC50) for Ae. aegypti larvae were: L-glutamic acid-Cu (II)-53.401 mg L-1 and L-aspartate-Cu (II)-108.647 mg L-1. The minimum inhibitory concentration (MIC) required for Staphylococcus aureus and Escherichia coli was: L-glutamate-Cu (II) 500-2000 mg L-1 and L-aspartate-Cu (II) 1000-2000 mg L-1. The concentrations demonstrated toxicity that evidence the potential of the complexes as bactericide and insecticide. Metal complexes formed by amino acids and transition metals are advantageous because of low environmental toxicity, biodegradability and low production cost.
@article{rodrigues_copper_2017,
title = {Copper {II} - {Polar} amino acid complexes: {Toxicity} to bacteria and larvae of {Aedes} aegypti},
volume = {89},
issn = {16782690},
doi = {10.1590/0001-3765201720160775},
abstract = {Control strategies using insecticides are sometimes ineffective due to the resistance of the insect vectors.In this scenario new products must be proposed for the control of insect vectors.The complexes L-aspartate Cu (II) and L-glutamate-Cu (II) complexes were synthesized and characterized by elemental analysis, visible ultraviolet, infrared spectroscopy and potentiometric titration. The toxicity of these complexes was analyzed in Aedes aegypti (Diptera: Culicidae) larvae and Gram-negative and Gram-positive bacteria. The interaction between the ligands and the amino acid balance and the distribution of the species as a function of pH were discussed. The lethal concentration median (LC50) for Ae. aegypti larvae were: L-glutamic acid-Cu (II)-53.401 mg L-1 and L-aspartate-Cu (II)-108.647 mg L-1. The minimum inhibitory concentration (MIC) required for Staphylococcus aureus and Escherichia coli was: L-glutamate-Cu (II) 500-2000 mg L-1 and L-aspartate-Cu (II) 1000-2000 mg L-1. The concentrations demonstrated toxicity that evidence the potential of the complexes as bactericide and insecticide. Metal complexes formed by amino acids and transition metals are advantageous because of low environmental toxicity, biodegradability and low production cost.},
number = {3},
journal = {Anais da Academia Brasileira de Ciencias},
author = {Rodrigues, Thiago A. D. and Arruda, Eduardo Jose De and Fernandes, Magda F. and Carvalho, Claudio T. De and Lima, Alessandra R. and Cabrini, Isaías},
year = {2017},
pmid = {28746551},
note = {ISBN: 1720160775},
keywords = {Bacteria, Metal-insecticide, Mosquito, Neurotransmitter, Population control of vectors},
pages = {2273--2280},
}
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The toxicity of these complexes was analyzed in Aedes aegypti (Diptera: Culicidae) larvae and Gram-negative and Gram-positive bacteria. The interaction between the ligands and the amino acid balance and the distribution of the species as a function of pH were discussed. The lethal concentration median (LC50) for Ae. aegypti larvae were: L-glutamic acid-Cu (II)-53.401 mg L-1 and L-aspartate-Cu (II)-108.647 mg L-1. The minimum inhibitory concentration (MIC) required for Staphylococcus aureus and Escherichia coli was: L-glutamate-Cu (II) 500-2000 mg L-1 and L-aspartate-Cu (II) 1000-2000 mg L-1. The concentrations demonstrated toxicity that evidence the potential of the complexes as bactericide and insecticide. 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The toxicity of these complexes was analyzed in Aedes aegypti (Diptera: Culicidae) larvae and Gram-negative and Gram-positive bacteria. The interaction between the ligands and the amino acid balance and the distribution of the species as a function of pH were discussed. The lethal concentration median (LC50) for Ae. aegypti larvae were: L-glutamic acid-Cu (II)-53.401 mg L-1 and L-aspartate-Cu (II)-108.647 mg L-1. The minimum inhibitory concentration (MIC) required for Staphylococcus aureus and Escherichia coli was: L-glutamate-Cu (II) 500-2000 mg L-1 and L-aspartate-Cu (II) 1000-2000 mg L-1. The concentrations demonstrated toxicity that evidence the potential of the complexes as bactericide and insecticide. Metal complexes formed by amino acids and transition metals are advantageous because of low environmental toxicity, biodegradability and low production cost.},\n\tnumber = {3},\n\tjournal = {Anais da Academia Brasileira de Ciencias},\n\tauthor = {Rodrigues, Thiago A. 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