Results 11 to 20 of about 2,630 (135)
This work describes the design, sustainable synthesis, evaluation of electrochemical and biological properties against HepG2 cell lines, and AChE enzymes of different substituted derivatives of 1,4- and 1,2-naphthoquinones (NQ).
Rafaela G. Cabral +4 more
doaj +1 more source
Áreas do conhecimento em que as universidades do Sul do Brasil possuem patentes concedidas
O estudo tem como objetivo geral analisar as patentes concedidas nas universidades públicas do Sul do Brasil no que se refere às áreas do conhecimento – de onde provêm, e em quais áreas elas são classificadas de acordo com a Classificação Internacional ...
Adriana Stefani Cativelli +2 more
doaj +1 more source
Synthesis of polyacrylamide in aqueous solution: solubility
The synthesis of aqueous polyacrylamide solution was evaluated for its solubility in water. The reactions were performed using the acrylamide monomer, solvent and initiator (K2S2O8), with the system under magnetic stirring and heating (60°C) for 4 hours.
Daniela T. Valente, Alcino P. de Aguiar
doaj +1 more source
Influence of temperature on thermodynamics for binary mixtures of short aliphatic protic ionic liquids [PDF]
Two binary mixtures of protic ionic liquids comprising formate, acetate and propionate anions and 2-hydroxyethyl ammonium, bis(2-hydroxyethyl) ammonium and tris(2-hydroxyethyl) ammonium cations have been studied in terms of volumetric and acoustic ...
Andrade Rebecca S. +2 more
doaj +1 more source
In this study, we report the enhanced electrochemical performance of a MnO2 electrode modified with a pH-sensitive co-polymer, activated at acidic pH, and designed to counteract MnO2 degradation in aqueous aqueous pseudocapacitors.
A.C. Alves +6 more
doaj +1 more source
The extraction of oil from passion fruit seeds using supercritical CO2 was studied. Experimental data were obtained for extraction conducted at 15, 20 and 25 MPa; at temperatures of 40 and 50 °C with CO2 flow rates of 1.5 and 3.0 mL min–1. An increase in
R. Cardoso de Oliveira +5 more
doaj +1 more source
Adsorption of CO2, N2, CH4, and their mixtures on silicalite: A critical evaluation of force fields [PDF]
The use of molecular simulation has been growing in the field of engineering, fueled not just by the advances in computational power but also on the availability of reliable software.
Arvelos Sarah +3 more
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Iron deficiency is one of the main causes of chlorosis in plants, which leads to losses in field crops quality and yield. The use of synthetic chelates to prevent or correct iron-deficiency is not satisfactory mainly due to their poor biodegradability ...
Carlos M. H. Ferreira +4 more
doaj +1 more source
Valorization of Wastes from Wine Industry in the Production of Lightweight Clay Bricks
Lightweight clay brick is an idea that arose from the need to reduce waste by giving grape pomace, a waste product from the Portuguese wine sector, a new use, promoting a circular economy.
José Matos +3 more
doaj +1 more source
We present here (1)⊂MIP‐216(Zr), a new hybrid material composed of an FeII spin crossover complex (1) loaded in the pores of a new hydrophobic metal–organic framework (MIP‐216(Zr), that presents a high affinity toward acetic acid and acts as a highly sensitive colorimetric sensor of acetic acid vapor due to a spin state switching of the encapsulated ...
Emmelyne Cuza +8 more
wiley +1 more source

