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Chitosan nanoparticles loaded the herbicide paraquat: The influence of the aquatic humic substances on the colloidal stability and toxicity
(Elsevier B.V., 2015-04-09)
Polymeric nanoparticles have been developed for several applications, among them as carrier system of pesticides. However, few studies have investigated the fate of these materials in the environment in relation to colloidal ...
A study of bio-hybrid silsesquioxane/yeast: Biosorption and neuronal toxicity of lead
(2017-12-20)
Lead is a heavy metal of high impact for the environment as well as for human health, being cause of several diseases. Considering the importance of obtaining an effective treatment for lead removal, a new hybrid material ...
Microscale Toxicity Identification Evaluation (TIE) for interstitial water of estuarine sediments affected by multiple sources of pollution
(2022-02-01)
Estuaries in the world are affected by different contamination sources related to urbanisation and port/industrial activities. Identifying the substances responsible for the environmental toxicity in estuaries is challenging ...
Subacute toxicity assessment of biobased ionic liquids in rats
(Elsevier B.V., 2020-08-01)
Ionic liquids (ILs) derived from compounds obtained from natural sources, such as fatty acids (FAs) have attracted the interest of the scientific and industrial communities because of their sustainable appeal and possible ...
Toxicity of Azadirachta indica to leaf-cutting ant Atta sexdens rubropilosa (Hymenoptera: Formicidae)
(2006-04-21)
The leaf-cutting ants are responsible for great economical damages in cultivated areas, and because of this characteristic, they have aroused the interest of researchers around the world. Thus, extracts of neem (Azadirachta ...
Not all toxic butterflies are toxic: high intra- and interspecific variation in sequestration in subtropical swallowtails
(2017-12)
Many herbivorous insects make use of plant secondary metabolites by consuming and storing
these toxic compounds in their body tissue or integument, thereby obtaining chemical defense against their
natural enemies. ...
Interação entre resíduo da matéria orgânica natural e metais potencialmente tóxicos
(Universidade Federal de São CarlosUFSCarCâmpus SorocabaQuímica - QL-So, 2021-11-10)
The contribution of potentially toxic metals in aquatic systems, whether of natural or anthropogenic origin, is an issue that has been worrying the Scientific Community over the years. This is mainly due to the wide ...
Riparian strips as attenuation zones for the toxicity of pesticides in agricultural surface runoff: Relative influence of herbaceous vegetation and terrain slope on toxicity attenuation of 2,4-D
(Elsevier, 2021-09)
Pesticides reach aquatic ecosystems via surface runoff becoming one of the main contributors to their deterioration. Among the strategies to mitigate these impacts, the use of riparian strips is recommended, but the knowledge ...