RSS 1.0Centro de Estudos Ambientais (CEA) - Rio Claro
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Leading the organization of the 5th espeqbrasil
Menegário, Amauri Antonio
(Brazilian Journal of Analytical Chemistry, 2018) [Carta]
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Predicting Trace Metal Exposure in Aquatic Ecosystems: Evaluating DGT as a Biomonitoring Tool
Eismann, Carlos Eduardo; Menegário, Amauri Antonio ; Gemeiner, Hendryk ; (Exposure and Health, 2018) [Artigo]
Exposure to trace metals is a leading factor associated with the development of non-communicable diseases. Aquatic ecosystems are not only effective agents of trace metal dispersion but are also at risk of contaminant ... -
Bioavailability of Metals at a Southeastern Brazilian Coastal Area of High Environmental Concern Under Anthropic Influence: Evaluation Using Transplanted Bivalves (Nodipecten nodosus) and the DGT Technique
Vannuci-Silva, Monizze; ; ; ; ; Eismann, Carlos Eduardo ; Kiang, Chang H. ; Govone, José S. ; ; Menegário, Amauri Antonio (Water, Air, and Soil Pollution, 2017) [Artigo]
Metals are commonly determined in aquatic organisms, primarily using bivalves to provide important data on their bioavailability. The technique of diffusive gradients in thin films (DGTs) has also been employed to assess ... -
Stable isotopes, carbon-14 and hydrochemical composition from a basaltic aquifer in São Paulo State, Brazil
Gastmans, Didier; Menegário, Amauri Antônio ; (Environmental Earth Sciences, 2017) [Artigo]
The Cretaceous Serra Geral Aquifer (SGA) is contained within one of the largest continental flood basalts in the world, reaching a thickness up to 1700 m in the center of the Paraná Basin. The SGA is one of the most important ... -
Copper and cadmium accumulation in gills and muscular tissue of tilapia (Oreochromis niloticus) under experimental conditions
; Tintor, Diogo Barcot; Dourado, Thiago de Araújo ; ; Menegário, Amauri Antônio ; (Boletim do Instituto de Pesca, 2018) [Artigo]
The world wide use of tilapia for different approaches in fish bioassay was exploited to assess the accumulation of copper and cadmium, in isolated forms and in combination in gills and muscular tissue in the specie ... -
A practical fluorescence-based screening protocol for polyethylene terephthalate degrading microorganisms
; ; Malafatti‑Picca, Lusiane; ; ; ; (Journal of the Brazilian Chemical Society, 2018) [Artigo]
We propose a practical, low-cost and selective fluorescence-based protocol adapted to identify polyethylene terephthalate (PET) degrading microorganisms. The microbial hydrolysis of PET nanoparticles was monitored by ... -
Dynamics of soil organic matter in a cultivated chronosequence in the Cerrado (Minas Gerais, Brazil)
; Rosolen, Vania; ; ; Conceição, Fabiano T. D. ; Govone, José S. (Soil Research, 2017) [Artigo]
The vegetation of the Cerrado has been replaced by pastures and agriculture, affecting the stock and dynamic of soil organic matter (SOM). The present study was conducted in a cultivated chronosequence with a mixed system ... -
Evolution of iron crust and clayey Ferralsol in deeply weathered sandstones of Marília Formation (Western Minas Gerais State, Brazil)
Rosolen, Vania; ; ; ; de Sousa Coelho, Carla Vanessa ; ; Govone, José Silvio (Journal of South American Earth Sciences, 2017) [Artigo]
Extensive flat plateaus are typical landforms in the cratonic compartment of tropical regions. Paleoclimate, pediplanation, laterization, and dissection have created complex and distinct geological, geomorphological, and ... -
Fractal-based models for the unsaturated soil hydraulic functions
Alfaro Soto, M. A.; Chang, H. K. ; (Geoderma, 2017) [Artigo]
Reliable estimates of the unsaturated soil hydraulic properties are needed in many research and engineering projects. Fractal based approaches have become popular for describing the hydraulic functions. New models based ... -
Use of diffusive gradient in thin films for in situ measurements: A review on the progress in chemical fractionation, speciation and bioavailability of metals in waters
Menegário, Amauri Antonio; Yabuki, Lauren N. Marques ; Luko, Karen S. ; ; (Analytica Chimica Acta, 2017) [Resenha]
Chemical fractionation, speciation analysis and bioavailability of metals and metalloids in waters have received increased attention in recent years. However, this interest is not matched by progress in improving species ... -
Elemental and isotopic determination of lead (Pb) in particulate matter in the Brazilian city of Goiânia (GO) using ICP-MS technique
Gemeiner, Hendryk; de Araujo Dourado, Thiago ; Sulato, Everton Tiago ; Galhardi, Juliana Aparecida ; ; ; Menegário, Amauri Antonio ; Gastmans, Didier ; Kiang, Chang Hung (Environmental Science and Pollution Research, 2017) [Artigo]
The toxic metal lead (Pb) can be harmful to human health in various manners, but is also considered as a distinguished tracer of environmental pollution since the relative abundance of its four stable isotopes with the ... -
Novel zinc(II) complexes [Zn(atc-Et)2] and [Zn(atc-Ph)2]: In vitro and in vivo antiproliferative studies
De Lopes, Erica O.; ; Da Silva, Patricia B. ; Eismann, Carlos E. ; Suárez, Carlos A. ; Menegário, Amauri A. ; Leite, Clarice Q. F. ; ; Pavan, Fernando R. (International Journal of Molecular Sciences, 2016) [Artigo]
Cisplatin and its derivatives are the main metallodrugs used in cancer therapy. However, low selectivity, toxicity and drug resistance are associated with their use. The zinc(II) (ZnII) thiosemicarbazone complexes [Zn(atc-Et)2] ... -
Field data and numerical simulation of btex concentration trends under water table fluctuations: Example of a jet fuel-contaminated site in Brazil
Teramoto, Elias Hideo; Chang, Hung Kiang (Journal of Contaminant Hydrology, 2017) [Artigo]
Mass transfer of light non-aqueous phase liquids (LNAPLs) trapped in porous media is a complex phenomenon. Water table fluctuations have been identified as responsible for generating significant variations in the concentration ... -
Adsorption of Ni(II), Pb(II) and Zn(II) on Ca(NO3)2-Neutralised Red Mud
Pichinelli, Beatriz Cestaro; da Silva, Mariana Scicia Gabriel ; da Conceição, Fabiano Tomazini ; Menegário, Amauri Antonio ; Antunes, Maria Lucia Pereira ; Navarro, Guillermo Rafael Beltran ; Moruzzi, Rodrigo Braga (Water, Air, and Soil Pollution, 2017) [Artigo]
This study aimed to investigate a novel method of red mud neutralisation by Ca(NO3)2 (NRM), keeping its adsorption capacity in relation to natural red mud (RM) for Ni(II), Pb(II) and Zn(II). Results pointed out that the ... -
Tilapia (Oreochromis niloticus) as a biondicator of copper and cadmium toxicity. A bioavailability approach
; ; Tintor, Diogo B.; Dourado, Thiago A. ; Alcântara, Amanda L. ; Menegário, Amauri A. ; (Journal of the Brazilian Chemical Society, 2017) [Artigo]
The acute toxicity of copper and cadmium in Oreochromis niloticus was evaluated through a 96 h static assay. Precipitation of Cu and co-precipitation of Cd in the presence of Cu were noted, being indicative of differences ... -
In situ determination of V(V) by diffusive gradients in thin films and inductively coupled plasma mass spectrometry techniques using amberlite IRA-410 resin as a binding layer
Luko, Karen Silva; Menegário, Amauri Antonio ; Suárez, Carlos Alfredo ; Tafurt-Cardona, Makenly ; Pedrobom, Jorge Henrique ; Rolisola, Ana Marta Cavinato Marchini ; Sulato, Everton Tiago ; Kiang, Chang Hung (Analytica Chimica Acta, 2017) [Artigo]
Amberlite IRA-410 anionic exchange resin was evaluated as the binding layer for sampling V(V) by using Diffusive Gradients in Thin Films (DGT). V(V) was determined by inductively coupled plasma mass spectrometry (ICP-MS). ... -
In situ speciation of uranium in treated acid mine drainage using the diffusion gradients in thin films technique (DGT)
Pedrobom, Jorge Henrique; Eismann, Carlos Eduardo ; Menegário, Amauri A. ; Galhardi, Juliana Aparecida ; Luko, Karen Silva ; Dourado, Thiago de Araujo ; Kiang, Chang Hung (Chemosphere, 2017) [Artigo]
The exchange membranes P81 and DE81 and Chelex-100 resin were used to perform in situ speciation of uranium in treated acid mine drainage at the Osamu Utsumi mining site, Poços de Caldas city, Southeast Brazil. To investigate ... -
Cu(II) adsorption from aqueous solution using red mud activated by chemical and thermal treatment
da Conceição, Fabiano T.; Pichinelli, Beatriz C. ; Silva, Mariana S. G. ; Moruzzi, Rodrigo Braga ; Menegário, Amauri Antonio ; Antunes, Maria Lucia Pereira (Environmental Earth Sciences, 2016) [Artigo]
Brazil is the third-largest producer of aluminium, with the red mud generated during the extraction of aluminium from bauxite through the Bayer process. The red mud has been studied for use as an adsorbent for removing of ... -
In situ redox speciation analysis of chromium in water by diffusive gradients in thin films using a DE81 anion exchange membrane
Suárez, Carlos A.; De Simone, Thays V. ; Menegário, Amauri A. ; Rolisola, Ana M.C.M. ; Luko, Karen S. ; Gastmans, Didier ; Da Conceição, Fabiano T. ; Kiang, Chang H. (Talanta, 2016) [Artigo]
A method for the in situ redox speciation analysis of chromium in water by the diffusive gradients in thin films (DGT) technique using a DE81 anion exchange membrane was successfully developed. For the selective uptake of ... -
Geochemical evolution of groundwater in a basaltic aquifer based on chemical and stable isotopic data: Case study from the Northeastern portion of Serra Geral Aquifer, São Paulo state (Brazil)
Gastmans, Didier; ; Menegário, Amauri Antônio ; Chang, Hung Kiang (Journal of Hydrology, 2016) [Artigo]
Groundwater from the fractured basalt Serra Geral Aquifer (SGA) represents an important source for water supply in Northeastern São Paulo state (Brazil). Groundwater flow conditions in fractured aquifers hosted in basaltic ...