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Mostrando ítems 11-20 de 1820
Biopolymer-Nanocomposite Hybrid Materials as Potential Strategy to Remove Pesticides in Water: Occurrence and Perspectives
(2022-01-01)
During the last three decades, the use of pesticides to increase agricultural yields has grown exponentially and excessively. These agricultural practices, in conjunction with various natural factors, have led to the ...
Photodegradation of hydroxylated N-heteroaromatic derivatives in natural-like aquatic environments: A review of kinetic data of pesticide model compounds
(Pergamon-Elsevier Science Ltd, 2005-12)
In the present review, the results published by our group and others related with the study of the kinetic behavior and, in some cases, the mechanism of the dye-promoted photooxygenation of several hydroxypyridines, ...
Concentration of current-use pesticides in frogs from the Pampa region and correlation of a mixture toxicity index with biological effects
(Elsevier, 2021-11)
Contamination with current-use pesticides is frequently mentioned as a key factor in global amphibian declines although a limited number of studies have examined the mixture of pesticides accumulated by free-living frogs. ...
Losses of Brazilian bees: an overview of factors that may affect these pollinators
(Julius Kuhn-inst, 2012-01-01)
The Neotropical region to which Brazil belongs, has a great and rich diversity of natives bees, up to a total of 3.000 species including the allochtone genus Apis that by natural crossing among European and African races ...
Development of stimuli-responsive nano-based pesticides: emerging opportunities for agriculture
(Springer Nature, 2019-09-21)
Pesticides and fertilizers are widely used to enhance agriculture yields, although the fraction of the pesticides applied in the feld that reaches the targets is less than 0.1%. Such indiscriminate use of chemical pesticides ...
Terpenos com atividade inseticida: uma alternativa para o controle químico de insetos
(Sociedade Brasileira de Química, 2003-05-01)
Many substances from different sources have been used by men for decades to control insects. After the 2nd World War, the use of inorganic compounds have declined drastically and natural products, as well as synthetic ...
Terpenos com atividade inseticida: uma alternativa para o controle químico de insetos
(Sociedade Brasileira de Química, 2003-05-01)
Many substances from different sources have been used by men for decades to control insects. After the 2nd World War, the use of inorganic compounds have declined drastically and natural products, as well as synthetic ...
Determination of parathion and carbaryl pesticides in water and food samples using a self assembled monolayer/acetylcholinesterase electrochemical biosensor
(MOLECULAR DIVERSITY PRESERVATION INT, 2008)
An acetylcholinesterase (AchE) based amperometric biosensor was developed by immobilisation of the enzyme onto a self assembled modified gold electrode. Cyclic voltammetric experiments performed with the SAM-AchE biosensor ...
Probe-based qPCR assay enables the rapid and specific detection of bacterial degrading genes for the pesticide metaldehyde in soil
(2022-04)
Metaldehyde, a molluscicide pesticide, has been identified as a pollutant of concern due to its repeated detection in drinking water, thereby generating numerous compliance failures for water utilities. Biological degradation ...