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Development of a new sequential injection in-line cloud point extraction system for flame atomic absorption spectrometric determination of manganese in food samples
(2008)
A preconcentration method for manganese determination by sequential injection cloud point extraction with subsequent detection by flame atomic absorption spectrometry (FAAS) has been developed. The enrichment of Mn was ...
Concreto autoadensável com utilização de resíduos de concreto
(Universidade Tecnológica Federal do ParanáToledoBrasilEngenharia CivilUTFPR, 2016-11-17)
The self-compacting concrete is relatively new, and it has its main characteristics and advantages by its flow capacity without segregation, and filling the entire inside of the forms without the internal concrete vibrator. ...
On-line solid phase extraction of bismuth by FI-HG-AAS using l-proline immobilised on carbon nanotubes combined with factorial design
(Elsevier Science, 2015-09)
This study explores further the analytical capabilities of functionalised multiwalled carbon nanotubes with l-proline (pro-MWCNTs) for the reliable preconcentration and determination of Bi(III) in waters using an on-line ...
Removal of humic acid by organo-montmorillonites: Influence of surfactant loading and chain length of alkylammonium cations
(Springer, 2014-05)
In this study, the characterization and adsorption properties of montmorillonite (MMT) and organomontmorillonites with different surfactant/cationic exchange capacity (CEC) ratios (1 and 2) of tetradecyl trimethylammonium ...
Structural defects and the diagnosis of amyloidogenic propensity
(National Academy of Sciences, 2003-05-27)
Disease-related amyloidogenic propensity has been unexpectedly found in proteins driven to adopt a monomeric uncomplexed state at high concentrations under near-physiological conditions. This situation occasionally arises ...
Effects of phenylalanine on the liquid-expanded and liquid-condensed states of phosphatidylcholine monolayers
(SAGE Publications, 2019-01)
Background: Phenylalanine (Phe) is involved in physiological and pathological processes in cell membranes in which expanded and condensed states coexist. In this direction, it was reported that surface hydration is important ...
Highly Photostable and Fluorescent Microporous Solids Prepared via Solid-State Entrapment of Boron Dipyrromethene Dyes in a Nascent Metal–Organic Framework
(American Chemical Society, 2018-11-21)
We report a strategy to synthesize highly emissive, photostable, microporous materials by solid-state entrapment of boron dipyrromethene (BODIPY) fluorophores in a metal–organic framework. Solvent-free mechanochemistry or ...
Explicit solvation effects on low-index Fe surfaces and small particles as adsorbents of Arsenic species: A DFT study
(Springer, 2021-06)
Density functional theory (DFT) calculations were carried out on hydroxylated and solvated (H&S) Fe substrates. Fe (110) and (111) extended surfaces as well as clusters of 32 and 59 atoms, and a nanoparticle of 80 atoms ...
Phospholipases a2 from Viperidae snakes: Differences in membranotropic activity between enzymatically active toxin and its inactive isoforms
(Biochimica et Biophysica Acta - Biomembranes vol 1848: 463–468, 2015-02)
We describe the interaction of various phospholipases A2 (PLA2) from snake venoms of the family Viperidae
(Macrovipera lebetina obtusa, Vipera ursinii renardi, Bothrops asper) with giant unilamellar vesicles (GUVs)
composed ...
Phospholipases a2 from Viperidae snakes: Differences in membranotropic activity between enzymatically active toxin and its inactive isoforms
(Biochimica et Biophysica Acta - Biomembranes vol 1848: 463–468, 2015-02)
We describe the interaction of various phospholipases A2 (PLA2) from snake venoms of the family Viperidae
(Macrovipera lebetina obtusa, Vipera ursinii renardi, Bothrops asper) with giant unilamellar vesicles (GUVs)
composed ...