Publications by authors named "G D Saraiva"

This study aimed to evaluate the behavior of Pseudomonas aeruginosa (PSA) in natural mineral water sourced from three different extraction wells and stored at various temperatures (10, 12, 20, 23, and 30 °C) to calculate the kinetic growth parameters of this microorganism through predictive modeling. The physicochemical characterization of waters was also evaluated at the time of collection, and included the analysis of 40 different minerals, and quality parameters such as pH, conductivity, oxidation-reduction potential (ORP), total dissolved solids (TDS), salinity (PSU), and temperature (T). PSA survived in raw mineral water incubated at 12, 20, 23, and 30 °C; however, no growth was observed at 10 °C.

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Article Synopsis
  • - Microbiologically contaminated water poses a risk of infections, especially from Pseudomonas aeruginosa (PSA), which can survive in water and resist disinfectants; this study focuses on how PSA adheres to materials used in mineral water extraction wells.
  • - Water samples were collected from three wells in Brazil, and their physicochemical properties, like strontium and iron concentrations, were analyzed, revealing that PSA adhered more to hydrophobic materials like HDPE and PVC.
  • - The study found that higher concentrations of certain elements (Sr, Fe, Si, SO, Cl) positively correlated with PSA adhesion on hydrophilic materials, while higher oxidation-reduction potential (ORP) negatively affected PSA attachment to PVC,
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Unlabelled: Dengue virus (DENV) infection is known to affect host cell metabolism, but the molecular players involved are still poorly known. Using a proteomics approach, we identified six DENV proteins associated with mitochondria isolated from infected hepatocytes, and most of the peptides identified were from NS3. We also found an at least twofold decrease of several electron transport system (ETS) host proteins.

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In this study, metal-doped niobates and perovskites were obtained by a solid-state reaction. The solids were evaluated in the esterification of glycerol in the presence of acetic acid to produce valuable esters of glycerol. The structural features of the solids indicated the ZnNbO, PbNbO and CuNbO columbite main phases and LaMnFeO double-perovskite.

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The effects on the structure, valence state and morphological properties of FeCo-containing SnO nanostructured solids were investigated. The physicochemical features were tuned by distinct synthesis routes e.g.

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